Sunday

May 1, 2016
Number of results: 34,399

**Pre-Algebra**

Okay so I have no clue how to determine if a relation is a function. Here is an example can you tell me how to determine this? D: Example: Determine whether the relation is a function. {(-5,5), (-2,5), (0,5), (2,5)} Thanks in advance
*May 2, 2011 by Cheryl*

**algebra**

Determine whether the following relation represents a function. If the relation is a function then state domain and range? {(-1,-6),(2,-6),(3,-6),(4,-6)} Does the given relation represents a function? What is domain?
*May 22, 2013 by Sharday*

**Alegbra**

Find the range of the relation [(1, -4), (2,5), (3,5)]. Then determine whether the relation is a function.
*January 17, 2013 by Megan*

**DISCRETE MATH**

We have a relation R on Z+ defined as follows: mRn if and only if m|n. a. Explain why the relation R is not a function. b. Determine the set A = {m ∈ Z|mR52} and give its cardinality |A|. c. Determine the set B = {n ∈ Z|52Rn}. d. Indicate whether A ∩ B = &#...
*May 31, 2015 by Anonymous*

**Algebra**

1. Determine whether the relation is a function. {(-2, -7), (3, -5), (6, -4), (9, -6), (10, -1)} 2. Determine whether the relation is a function. {(-5, -4), (-2, 9), (-1, -2), (-1, 7)} 3. Determine whether the relation is a function. {(-7, -1), (-7, 2), (-1, 8), (3, 3), (10, -...
*August 22, 2012 by Josh*

**math**

Determine whether or not the relation is a function. {(-3, 6), (-2, 7), (-1, 8), (0, 9)} yes or no
*November 16, 2009 by denise*

**Math**

Determine whether or not the relation is a function (1,9)(2,10)(3,11)(4,12)
*June 7, 2011 by CC*

**Math**

11. Determine whether or not the relation is a function. {(-3, 6), (-2, 7), (-1, 8), (0, 9)} No Yes
*June 7, 2011 by CC*

**algebra**

Determine whether or not the relation is a function. (-3,6), (-2,7, (-1,8), (0,9)
*January 26, 2013 by samuel*

**Math Help!**

Determine whether the relation is a function. {(4, 9), (-4, 9), (2, 3), (10, -5)}
*November 27, 2013 by Lori*

**Algebra 1 (Reiny or Kuai)**

Give the domain and range values of each relation. Tell whether the relation is a function. The x-values are -3, -2, -1, -2. The y-values are 9, 6, 3, 0. A: D: {-3, -2, -2}; R: {9, 6, 3, 0} No, this relation is not a function?
*November 13, 2013 by Anonymous*

**Pre Calc**

Determine whether the relation is a function. [(-4,6),(-1,3),(3,3),(8,-9)]
*August 25, 2009 by Hannah*

**MATH**

I NEED TO NO HOW TO DETERMINE WHETHER EACH RELATION IS A FUNCTION
*November 9, 2010 by CHARLEY*

**algebra 2**

List the domain and range and determine whether the relation is a function.(2,4)(4,-2)(1,3)(0,3)
*December 11, 2009 by y*

**calcius**

Determine whether the relation represents a function. If it is a function, state the domain and range. {(-2, 1), (-1, -2), (0, -3), (1, -2), (3, 6)} a. function domain: {-2, -1, 0, 1, 3} range: {1, -2, -3, 6} b. function domain: {1, -2, -3, 6} range: {-2, -1, 0, 1, 3} c. not a...
*June 9, 2008 by rachel*

**Math**

Let R1 be a binary relation on the set of integers defined as follows: R1 = {(x, y) / 4 divides x y}. Determine whether the given relation R1 is an equivalence relation on the set {1, 2, 3, 4, 5}.
*March 10, 2007 by Julio*

**statistics**

Determine whether the description corresponds to an observational study or an experiment. Research is conducted to determine if there is a relation between kidney function in adults and childhood-onset diabetes.
*March 10, 2015 by slomomo*

**Algebra**

Graph the relation then tell whether the relation is a function The coordinates are: (0,-4), (0,4), (2,-3), (2,3). (4,-1) (4,1) After I graphed it I found that two of the point were on the y-axis so does that mean it is not a function? I might be getting it backwards though. ...
*August 29, 2011 by Linda*

**Algebra 2**

1. Determine whether the relation is a function. A: ? 2. A commuter has $75. Each day's commute costs $3.50. Write a function to represent the total amount the commuter has remaining after d days. What is the value of the function for an input of 5, and what does it represent...
*September 19, 2014 by Victoria*

**math**

find the domain and range of the relation, and state whether or not the relation is a function. {(3,9), (3,10), (3,11), (3,12)}
*April 13, 2009 by yorkie16*

**math**

find the domain and range of the relation and state whether or not the relation is a function. {(1,3), 2,3), (3,3), (4,3)}
*April 13, 2009 by yorkie16*

**algebra**

Find the domain and range of the relation, and state whether or not the relation is a function. {(3, 9), (3, 10), (3, 11), (3, 12)}
*December 14, 2009 by kara*

**Math**

Find the domain and range of the relation, and state whether or not the relation is a function (1,3)(2,3)(3,3)(4,3)
*June 7, 2011 by CC*

**Math**

Find the domain and range of the relation, and state whether or not the relation is a function. {(3, 9), (3, 10), (3, 11), (3, 12)}
*June 12, 2012 by Anonymous*

**Math**

For the set of ordered pairs, state the domain, range, and determine whether or not the relation represents a function. (9,9), (7,4), (1,2), (2,6), (5,0) Domain: 9,7,1,2,5 Range: 9, r, 2, 6, 0 It is a function because no x value is repeated
*September 10, 2014 by Please help*

**math**

Which of the following best describes the equation below? y= -7x + 6 answers choices are: A. relation only B. neither a relation nor a function C. function only D. both a relation and a function
*February 27, 2014 by Ayriana*

**algebra**

Part A: Give the domain and range of the relation. Part B: Tell whether the relation is a function. X Y 8 8 6 6 4 4 2 6 0 8
*December 15, 2013 by genny*

**9th grade**

I am having trouble trying to figure out how to work this problem: Determine if each relation is a function. 1. Relation: (-2,2),(3,2,),(4,-1),(5,-2) How do i do this???????
*March 2, 2010 by NIki*

**Pre Cal.**

Given that x is an integer between -2 and 2, state the relation represented by the equation y = 2-abs(x) by listing a set of ordered pairs. Then state whether the relation is a function. I think it's: (-2,0) (-1,1) (0,2) (1,1) (2,0)
*April 1, 2009 by Patrick*

**Need help asap**

I need help! Reasoning: Can a function have an infinite number of values in its domain and only a finite number of values in its range? If so, describe a real-world situation that could be modeled by such a function. Writing: What is the difference between a relation and a ...
*January 9, 2014 by Macie*

**Math**

Suppose R is the relation on N where aRb means that a ends in the same digit in which b ends. Determine whether R is an equivalence relation on N. And, Suppose that R and S are equivalence relations on a set A. Prove that the R S is also an equivalence relation on A.
*November 18, 2011 by Martin*

**Algebra 2**

1. Simplify ((-2x^4y^7)/(x^5))^3. Assume all variables are nonzero. A: (-8y^21)/(x^3) 2. Simplify 3x(5y + 4) - 2xy - 10x + 6x^2 A: 13xy + 2x + 6x^2 or 6x^2 + 13xy + 2x 3. Evaluate (2.0 x 10^-7)/(8.0 x 10^-9). Write the answer in scientific notation. A: 0.25 x 10^2 4. Evlauate ...
*September 19, 2014 by Victoria*

**Algebra 2--Please, help me!**

1. Simplify ((-2x^4y^7)/(x^5))^3. Assume all variables are nonzero. A: (-8y^21)/(x^3) 2. Simplify 3x(5y + 4) - 2xy - 10x + 6x^2 A: 13xy + 2x + 6x^2 or 6x^2 + 13xy + 2x 3. Evaluate (2.0 x 10^-7)/(8.0 x 10^-9). Write the answer in scientific notation. A: 0.25 x 10^2 4. Evlauate ...
*September 20, 2014 by Victoria*

**Algebra 2 **

1. Simplify ((-2x^4y^7)/(x^5))^3. Assume all variables are nonzero. A: (-8y^21)/(x^3) 2. Simplify 3x(5y + 4) - 2xy - 10x + 6x^2 A: 13xy + 2x + 6x^2 or 6x^2 + 13xy + 2x 3. Evaluate (2.0 x 10^-7)/(8.0 x 10^-9). Write the answer in scientific notation. A: 0.25 x 10^2 4. Evlauate ...
*September 20, 2014 by Victoria*

**Math Test**

1. A rental car company charges $150.00 for a weekly rental and an additional $0.20 for each mile driven. The function rule C=0.20m+150.00 describes the relationship between the number of miles driven m and the total cost C. If the rental car can only be driven a maximum of ...
*November 30, 2015 by Kaai97*

**Discrete Math**

Consider the following relation on R1, the set of real numbers R1 = {(1,1), (1,2), (2,1), (2,2), (3,3), (4,4), (3,2), (2,3)} Determine whether or not each relation is flexible, symmetric, anti-symmetric, or transitive. * Reflexive because the relation contains (1,1), (2,2), (3...
*February 8, 2011 by Laurey *

**math**

Decide whether the relation is a function or not {(-4, -8), (-1, 2), (2, -2), (6, 1)}
*February 9, 2010 by re*

**Pre-Calculus**

Given that x is an integer, state the relation represented by absolute value y = x/2 and 0 is less than or equal to x which is less than or equal to 2 by listing a set of ordered pairs. Then state whether the relation is a function. Write yes or no. Please help--no clue what ...
*September 28, 2008 by Lucy*

**Math**

Determine whether the following relation is a function. {(3,7),(3,8),(3,-2),(3,4),(3,1)} a. It is a function because the ordered pairs all have the same x-value*** b. It is NOT a function because there are multiple y-values paired with a single x-value c. It is a function ...
*November 17, 2015 by Kaai97*

**math**

Tell whether the relation is a function. Explain your answer. (-6,-3), (-4,-2), (-2,0), (2,0), (4,-2), (6,-3).
*April 22, 2009 by maya*

**Math**

state whether each relation y=f(x) describes a quadratic function or not
*June 18, 2014 by Jeff*

**Math**

state whether each relation y=f(x) describes a quadratic function or not y=3-x^2
*June 18, 2014 by Jeff*

**math**

3. For the following, state the domain, range, and state whether the relation is a function. If it is not a function explain why. {(3,2), (4,5), (8,5), (-3,2)} {(4,5), (2,3), (-2,4), (9,3)} {3,2), (5,10), (20, 4), (3, 8)} .
*September 29, 2013 by jarron*

**trigonometry**

y=5x^2+8 give the domain and range of the relation and indicate whether or not it is a function.
*January 15, 2009 by y912f*

**Algebra**

Find the domain and range of the relation and state whether or not it is a function. {(1,3) (2,3)(3,3) (4,3)}
*May 12, 2011 by Michael *

**Algebra**

detremine whether the relation is a function or not 1)y=-15 2)x=5 3)((1,0),(1,4),(-1,1)) 4)((6,3),(5,-2),(2,3)) PLEASE EXPLAIN WITH DEETAILED
*October 18, 2014 by RAJ*

**Algebra(please check my answers)**

**Choose the Vocab word that best fits the given sentences** ~Word Bank~ A)slope B)domain C)vertical line test D)function E)negative correlation F)solution G)range H)linear equation ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ GIVEN QUESTIONS W/ MY ANSWERS 1. The tilt slant of a ...
*November 19, 2015 by Maya^.^*

**College algebra!**

For the linear function f(x) = 5x + 3 (a) Determine the slope and y-intercept (b) Use the slope and y-intercept to graph the linear function. (c) Determine the average rate of change of the function (d) Determine whether the linear function is increasing, decreasing, or constant.
*March 15, 2013 by Jenn*

**algebra**

Find the domain and range of the relation and determine whether it is a function? Answers are Domain x>1 range y>0yes it is a function Domain all real numbers,range all real numbers yes it is a function Domain positive integers, range positive integers no it is not a ...
*March 12, 2014 by snow*

**Algebra**

Could you please check my work. Determine whether the realtion is a funtion. 2.{(-6,2),(-2,5),(3,2),(3,-7)} -Not a function 2. Determine whether the equation defines y as a function of x. 2x+4y=15- the answer I got is y is a fucntion of x. Evalute the function at the given ...
*August 30, 2007 by Soly*

**Pre calc functions**

Determine whether the function g(x)=x^4-7x^2 is an even, odd, or neither function. Also determine the symmetry of its graph
*May 11, 2015 by TJ*

**algebra**

Explain the words relation and function. Include in your explanation how the meanings of the two words differ. Give a real-world example of a relation that is not a function. Is it possible to give an example of a function that is not a relation? If so, give one, if not, ...
*February 12, 2012 by Lucy needs help now*

**algebra**

Explain the words relation and function. Include in your explanation how the meanings of the two words differ. Give a real-word example of a relation that is not a function. Is it possible to give an example of a function that is not a relation? If so, give one. If not, ...
*February 15, 2012 by Algebra need help*

**algebra **

(1) Explain the words relation and function. Include in your explanation how the meanings of the two words differ. Give a real-world example of a relation that is not a function. Is it possible to give an example of a function that is not a relation? If so, give one. If not, ...
*February 28, 2012 by help needed asap *

**algebra**

Let the set of ordered pairs (x, y)= {(1, 2), (2, 4), (1, 3), (3, 4)} is a relation between x and y. Then the relation: A. is a function B. is not a function as y = 4 is related to two values of x i.e. x = 2 and x = 3 C. is not a function as x = 1 is related to two values of y...
*January 22, 2014 by orpheus*

**College Algebra (Functions)**

The relation is a function containing two ordered pairs. Reversing the components in each ordered pair results in a relation that is not a function. A) {(0, 2), (0, 3)} B) {(2, 3), (3, 2)} C) {(3, 1), (4, 1)} D) {(4, 5), (2, 3)}
*September 11, 2011 by Sydney*

**Math**

Which of the following relations has this characteristic: The relation is a function containing two ordered pairs. Reversing the components in each ordered pair results in a relation that is not a function. A) {(0, 2), (0, 3)} B) {(2, 3), (3, 2)} C) {(3, 1), (4, 1)} D) {(4, 5...
*September 12, 2011 by Kara*

**Algebra (please help)**

Which of the following relations has this characteristic: The relation is a function containing two ordered pairs. Reversing the components in each ordered pair results in a relation that is not a function. A) {(0, 2), (0, 3)} B) {(2, 3), (3, 2)} C) {(3, 1), (4, 1)} D) {(4, 5...
*September 12, 2011 by Kristen*

**College Algebra**

The relation is a function containing two ordered pairs. Reversing the components in each ordered pair results in a relation that is not a function. A) {(0, 2), (0, 3)} B) {(2, 3), (3, 2)} C) {(3, 1), (4, 1)} D) {(4, 5), (2, 3)}
*September 11, 2011 by Sally*

**Algebra**

The relation is a function containing two ordered pairs. Reversing the components in each ordered pair results in what relation not being a function. A) {(0, 2), (0, 3)} B) {(2, 3), (3, 2)} C) {(3, 1), (4, 1)} D) {(4, 5), (2, 3)}
*September 11, 2011 by Mike*

**maths**

The following statement defines a relation R in the natural numbers N. state whether or not each relation is symmetric 1. x is less than or equal to y 2. x+y =10
*December 10, 2013 by lindsay*

**math**

I'm just having trouble trying to see the independent and dependant variables. I have to determine whether the following are functions: The relation between distance and time if someone walks 5km/h. I think distance would be the independent variable because you can go ...
*February 16, 2015 by julie*

**Algebra2**

Determine if the given relation is function or not. Give its domain and range. 16. (-1, 2), (1, 3), (-1, 4), (2, 5) 17. (1, 1), (2, 2), (3, 3), (4, 4)
*October 11, 2012 by Leaaf*

**Algebra2**

Determine if the given relation is function or not. Give its domain and range. 16. (-1, 2), (1, 3), (-1, 4), (2, 5) 17. (1, 1), (2, 2), (3, 3), (4, 4)
*November 29, 2012 by Nessa*

**Algebra 1**

use the vertical line test to determine if the relation(-6,-2), (-2,6),(0,3),(3,5) is a function
*December 1, 2014 by Steve*

**Discrete Math**

Consider the following relations on R, the set of real numbers a. R1: x, y ∈ R if and only if x = y. b. R2: x, y ∈ R if and only if x ≥ y. c. R3 : x, y ∈ R if and only if xy < 0. Determine whether or not each relation is flexible, symmetric, anti-...
*February 7, 2011 by Laurey *

**math**

Let f be he real-valued function defined by f(x)=sin^3x+sin^3|x| (a) find f'(x) for x>0 (b) find f'(x) for x<0 (c) determine whether f(x) is continuous and x=0 (d) determine whether the derivative of f(x) exists at x=0
*November 4, 2010 by Mariam*

**Algebra plz help**

1.Identify the domain and range of the following relation. {(3,7),(3,8),(3,-2),(3,4),(3,1)} A.Domain:{3} Range:{-2,1,4,7,8}**** B.Domain:{-2,1,4,7,8} Range:{3} C.Domain:{all real numbers} Range:{all real numbers} D.Domain:O/ Range:O/ 2.Determain whether the following relation ...
*October 20, 2015 by GummyBears*

**Algebra**

Decide whether the given relation is a function of x. (NO CREDIT WILL BE GIVEN WITHOUT AN EXPLANATION). Give the domain. y=-7/x-16
*February 20, 2014 by Eva *

**Algebra2**

Problems 16 & 17: Determine if the given relation is function or not. Give its domain and range. 16. (-1, 2), (1, 3), (-1, 4), (2, 5) 17. (1, 1), (2, 2), (3, 3), (4, 4)
*September 17, 2012 by Unknown*

**Algebra 1 (Reiny or Kuai)**

1. Graph each equation. Tell whether the equation represents a function. a. y = (x - 2)^2 - 1 b. x + y = 6 c. y = |x| -3 d. y = x^2 + 1 How am I supposed to graph these? 2. For each function, determine whether the given points are on the graph. a. y = 7x - 2; (1, 5) and (2, 10)
*November 4, 2013 by Anonymous*

**HELP!!! Math**

Given the relation A = {(5,2),(7,4),(9,10),(x,5)}. What is the value of x that will make relation A a function?
*June 5, 2013 by Jnr John*

**Algebra**

1.Identify the domain and range of the following relation. {(3,7),(3,8),(3,-2),(3,4),(3,1)} A.Domain:{3} Range:{-2,1,4,7,8}**** B.Domain:{-2,1,4,7,8} Range:{3} C.Domain:{all real numbers} Range:{all real numbers} D.Domain:O/ Range:O/ 2.Determain whether the following relation ...
*October 19, 2015 by GummyBears*

**Algebra Functions**

I dont understand how you determine whether a function is even, odd,or neither. Here are my problems: Determine whether the given function is even, odd, or neither. 8. f(x)=x^3-x^2 This is how I did it. f(-x)=(-x^3)- (-x^2)= (-x)(-x)(-x) - (-x)(-x) = (-x^3) -(x^2)- I got that ...
*September 5, 2007 by Soly*

**algebra**

Explain the words relation and function. Include in your explanation how the meanings of the two words differ. Give a real-word example of a relation that is not a function. Is it possible to give an example of a function that is not a relation? If so, give one. If not, ...
*February 15, 2012 by Algebra need help*

**Calculus**

1. Locate the absolute extrema of the function f(x)=cos(pi*x) on the closed interval [0,1/2]. 2. Determine whether Rolle's Theorem applied to the function f(x)=x^2+6x+8 on the closed interval[-4,-2]. If Rolle's Theorem can be applied, find all values of c in the open interval...
*October 30, 2012 by Cynthia*

**Math**

Can you please check my answers. Determine whether the function is a polynomial function. f(x) = 4x + 4x^5 -Yes f(x) = 4 - 1/x^2 -No
*October 15, 2007 by Jan*

**discrete math**

1. let A and B be sets. Show that A U (B - A)=A U B 2. determine whether f is a function from Z to R if a) f(n)= +n b) 1/(n square -4) For 1. B-A is the same as B intersect ~A (That's the complement of A) So A U B = A U (B int ~A) = (A U B) int (A U ~A) A U ~A is the universal...
*October 11, 2006 by thisha*

**math**

How do you determine whether something is a function or not? If it is a rule or formula that lets you input one number to get another, then it is a function.
*March 19, 2007 by George*

**algebra ll**

find the range of the relation (-1,4),(2,5), (3,5)then determine if the relation is a funtion or not thank u
*August 8, 2008 by natasha*

**Statistics**

Test the following function to determine whether it is a probability function. If it is not, then make it into a probability function. (Give your answers correct to one decimal place.) R(x) = 0.2, for x = 0, 1, 2, 3, 4 (a) List the distribution of probabilities. R(0) = R(1) = ...
*May 27, 2013 by Tom*

**statistics**

Test the following function to determine whether it is a probability function. If it is not, then make it into a probability function. (Give your answers correct to one decimal place.) R(x) = 0.2, for x = 0, 1, 2, 3, 4 (a) List the distribution of probabilities. R(0) = R(1) = ...
*May 29, 2013 by Tom*

**algebra**

For the function f(x)=(7-8x)^2, find f^-1. Determine whether f^-1 is a function.
*December 10, 2012 by lee*

**algebra**

for the function f(x)=(3-4x)^2, find f-1. determine whether f-1 is a function
*January 4, 2013 by anonymous*

**Algebra 2 help.**

For the function f(x)=(3-4x)^2, find f^-1. Determine whether f^1 is a function.
*January 14, 2014 by Heather*

**Calc**

Use the derivative to determine whether the function is strictly monotonic on its entire domain and therefore has an inverse function. f(x) = cos [(3x)/2]
*December 6, 2010 by Erica*

**Mathematics**

I have a question about onto and one-to-one.? Determine(with an explanation) whether this function is one-to-one and whether it is onto. f:R-->RxR, where f(x)=(x^2, 2x+1). I honestly know this is probably very simple but I have not idea where to start. I'm not even sure ...
*April 5, 2010 by Anonymous*

**math**

determine whether the correspondence is a function . Detroit ---lions,tigers,pistons. New York---rangers, jet, yankees. Is this correpondance a function.
*September 20, 2010 by Anonymous*

**Algebra**

98. Solve the equation -49 = x - 50 x=1? 94. Determine if the following equation is a function: x=2 No? 92. Determine if the following equation is a function: y=5 No? 89. Solve for x in the equation: 6/7x - 6 = -2 I got x=28/3 86. Does the following set of coordinates make a ...
*May 1, 2010 by y912f*

**Discrete Math**

Which of these relations on {0, 1, 2, 3} are equivalence relations? Justify the relation(s) that are not equivalent. R1: {(0,0), (1,1), (2,2), (3,3)} R2: {(0,0), (1,1), (1,3), (2,2), (2,3), (3,1), (3,2), (3,3)} R3: {(0,0), (0,1), (0,2), (1,0), (1,1), (1,2), (2,0), (2,2), (3,3...
*February 8, 2011 by Laurey *

**Functions**

I need help with the following question. I am sure how to tell if something is a function or not. Determine whether the realtion is a function. {(-6,2),(-2,5), (3,2),(3,-7)} I think its not a function, but then again I think it is cause you have different x's going to ...
*September 1, 2007 by Soly*

**Math Help!**

A.) Determine "a" and "k" so both points are on the graph of the function. 1.) (0,1) (2,1); y=a(x-1)^2+k 2.) (1,11) (2,-19); y=a(x+1)^2+k B.) Determine whether or not the function f(x)=0.25(2x-15)^2+15 has a mazimum or a minimum value. Then find the value. C.) When y=2(x-3)(x+...
*January 21, 2014 by Lanie*

**College math**

Determine whether the following function is a one-to-one function,and if the function is a one-to-one, find a formula for the inverse. F(x)=5/(x+3)
*August 2, 2014 by Michala *

**College math**

Determine whether the following function is a one-to-one function,and if the function is a one-to-one, find a formula for the inverse. F(x)=(5x-6)/(2x+3)
*August 2, 2014 by Michala *

**College math**

Determine whether the following function is a one-to-one function,and if the function is a one-to-one, find a formula for the inverse. F(x)=x^3-27
*August 2, 2014 by Michala *

**Pre-Calculus**

Determine whether the equation represents y as a function of x. |y| = 4 - x If I plug in 5, then I get -1, but it also means 1. Does that mean y has 2 values which means that it is not a function?
*August 9, 2012 by Peter*

**Algebra**

Explain how you would determine whether the graph of y = x^4 represents an exponential function. What is an exponential function? Thank you! :-)
*March 30, 2009 by Cassie*

**Algebra 2**

Is my answer correct? Directions: Determine whether y is a function of x. Problem: x^2+y^2=16 Answer: x^2+y^2+-x^2=16+-x^2 y^2=-x^2+16 y= √-x^2+16 y is not a function of x
*November 18, 2015 by Neil*

**pre calc**

The following piecewise function gives the tax owed, T(x), by a single taxpayer on a taxable income of x dollars. T(x) = (i) Determine whether T is continuous at 6061. (ii) Determine whether T is continuous at 32,473. (iii) If T had discontinuities, use one of these ...
*October 10, 2015 by allexelle*

**math**

how do you determine whether{(1,4),(2,6),(3,7),(4,4)} is a function????
*March 19, 2009 by tyler*