Search: Variation-Check Problems

Number of results: 42,435

Math- steve or ms. sue
does the data in the table represent a direct variation or an inverse variation? x 2 4 8 12 y 4 2 1 2/3 Choices: inverse variation; xy = 8 direct variation; y = 8x inverse variation;y/x = 8 *direct variation; y = 8/x Thank You.
Wednesday, April 17, 2013 at 12:56pm by James

Math
I am doing Direct Variation in math. I dont understand how to do it. It would be very helpful if you helped me with these problems: Is each equation a direct Variation? If it is, find the constant of variation: y=3/5x -3x+2y=0 -5x+2y=9 8x+4y=12
Tuesday, April 8, 2008 at 6:50pm by Kirsin

algebra
Find the variation constaant and an equation of variation where Y varies directly as X and Y = 72 hen X = 8 The variation constant is K = ? The equation of variation is Y = ? I think that K = 9 but not sure I don't have a clue about the rest.
Tuesday, August 17, 2010 at 7:34pm by Lori

Algebra Variation Constant
What does this mean? Do I graph this or what? Find the variation constant and an equation of variation where y varies directly as x and y=12 when x=2 The variation constant =? The equation of variation is y=?
Wednesday, February 27, 2008 at 7:43pm by Micah

Algebra
Find the variation constant and an equation of variation where Y varies directly as X and Y=60 when X=10 k=variation constant y=equation of variation Still do not understand..please..
Saturday, May 5, 2012 at 9:39am by Maria1

biology
Could someone please check this definition and tell me if it's good or if it's too much (whatever) Variation=the existence of differences between the individuals in a population. It can be described as continuous or discrete. Examples of discrete variation are gender ...
Tuesday, January 15, 2008 at 2:34pm by Anonymous

algebra
find the variation constate and an equation of variation where y varies inversely as x and y=1 whenx=6 what is the variation constant is
Thursday, December 15, 2011 at 9:04pm by karon

math
Each point is included in a different variation. Which variation is the constant of variation 3/5 a -3,-5 b -3,5 c -2,-3 d 15,9 plz explain. thanks
Saturday, March 21, 2009 at 9:19pm by Anonymous

math
Each point is included in a different variation. Which variation is the constant of variation 3/5 a -3,-5 b -3,5 c -2,-3 d 15,9 plz explain. thanks
Friday, March 20, 2009 at 9:19pm by Anonymous

algebra
Find the variation constant and an equation of variation where y varies directly as x and y =4 when x=1. the variation constant is K= the variation constant is y =
Sunday, June 3, 2012 at 7:36am by plz hlp

Algebra genius?
Find the variation constant and an equation of variation where Y varies directly as X and Y=60 when X=10 k=variation constant y=equation of variation
Saturday, May 5, 2012 at 8:23am by Maria1

algebra
Find the variation constant and an equation of variation where y varies directly as x and y=16 when x=8 The variation constant is k=? The equation of variation is y=?
Friday, October 22, 2010 at 11:10am by ASHLY

algebra
Tell whether equation represents direct variation. If so, identify the constant of variation 1. Y=8x Ans: yes, it represents direct variation because its in the form Y=kx. Constant of variation: 8 2. Y=2x+1 3. 3x+y=6 Please help, not too sure if I am understanding this ...
Friday, January 4, 2013 at 7:02am by **LB**

Math- steve or ms. sue
heck, just check each choice Looks like xy=8 to me inverse variation y=8/x is correct, but it's an inverse variation
Wednesday, April 17, 2013 at 12:56pm by Steve

statistics
One other comment: Explained variation in this case is the variation in Y values that is explained by X values; unexplained variation is variation in Y values that cannot be explained by X values. Total variation is explained values plus unexplained values. I hope this will help.
Saturday, January 31, 2009 at 11:53pm by MathGuru

algebra
find the variation constant and an equation of variation where y varies directly as x and y=35 when x=5 the variation constant is k=
Tuesday, December 13, 2011 at 5:01pm by karon

Math: Direct Variation
I am wondering if it is formulas you need or understanding. First: Bilinear variation, or linear variation. There is a BIG difference. Second: formulas indicate some question you have. What is it exactly you are trying to do?
Monday, November 3, 2008 at 6:10am by bobpursley

algebra
1. Find the variation constant and and an equation of variation where y varies directly as x and y y=42 when x=6 variation constant is K= equation of variation is y= 2.Jack usually mows his lawn in 6 hours. Marilyn can mow the same yard in 4 hours. How muschtime would it take ...
Tuesday, January 3, 2012 at 10:06pm by Pinky P

algebra
Could someone show me how to solve this joint variation problems? Y varies jointly as x and y and inversely as w. Write the appropriate combined variation equation and find z for the given values of x, y and w. z=15 when x equals three, y equals four, and w equals nine, x ...
Monday, December 8, 2008 at 4:38pm by Juliette

Algebra Variation Constant
the statement "y varies directly as x" can be written as y = kx, where k is the variation constant we are given y=12 when x=2, so 12 = 2k k=6, so the variation constant is 6 and the equation is y = 6x
Wednesday, February 27, 2008 at 7:43pm by Reiny

math
c. Y = 3/x, Inverse variation. d. Y = 1/3x, Inverse variation. In inverse variation, Y decreases when X is increased.
Thursday, May 16, 2013 at 6:15pm by Henry

Variation
Could you please help me with the following question? Find the variation equation for the variation statement. 31. z varies jointly as y and the cube of x; z=96 when x=2 and y=6 (I dont understand this one. My answer choices are: a.y=2x^3y,b.y=2xy^3, c.y=-2x^3y, or d. y=-2xy^3)
Wednesday, October 10, 2007 at 9:05pm by Soly

Math
A farmer’s harvest in bushels varies directly with the number of acres planted. A. Express in sentence form what this means to the farmer. B.Translate the variation statement into the corresponding variation equation. C. If 8 acres can produce 144 bushels, find the ...
Saturday, April 21, 2012 at 2:17pm by Veronica

Need help with variation
Could you please help me with the following question? Find the variation equation for the variation statement. 31. z varies jointly as y and the cube of x; z=96 when x=2 and y=6 (I dont understand this one. My answer choices are: a.y=2x^3y,b.y=2xy^3, c.y=-2x^3y, or d. y=-2xy^3)
Tuesday, October 9, 2007 at 8:42pm by Soly

Variation Problem
Could you please help me with the following question? Find the variation equation for the variation statement. 31. z varies jointly as y and the cube of x; z=96 when x=2 and y=6 (I dont understand this one. My answer choices are: a.y=2x^3y,b.y=2xy^3, c.y=-2x^3y, or d. y=-2xy^3)
Tuesday, October 9, 2007 at 6:49pm by Soly

algebra 2 word problems
Determine whether y varies directly with x in 6x 2 3 5 2y 2 3. If so, what is the constant of variation?
Monday, October 10, 2011 at 11:31am by Anonymous

math
This is about direct variation. The area a painter can paint varies directly with the amount of time he works. One morninig, he painted 204 ft² between 8 a.m. and 12:15 PM. Write a direct variation equation to describe the area y covered in x hours. The forumlua for ...
Wednesday, November 17, 2010 at 8:14pm by Jeff

Algebra
This is about direct variation. The area a painter can paint varies directly with the amount of time he works. One morninig, he painted 204 ft² between 8 a.m. and 12:15 PM. Write a direct variation equation to describe the area y covered in x hours. The forumlua for ...
Wednesday, November 17, 2010 at 6:22pm by David

direct variation or neither
C. Represents Neither. Direct variation: Y = 5x. When X is doubled, Y is doubled. Inverse variation: Y = 5/X. When X increases, Y decreases.
Friday, August 19, 2011 at 1:15pm by Henry

Algebra
Find the constant of variation for the quadratic variation. 6y = 4x2 A. 4/9 B. 2/3 C. -2 D. 3/2
Wednesday, January 16, 2013 at 11:23am by Becka

Science
how do you read graphs showing direct variation and inverse variation??
Friday, January 30, 2009 at 5:43pm by Angie

Science
how do you read graphs showing direct variation and inverse variation??
Thursday, January 29, 2009 at 6:09pm by Angie

algebra
Find the variation constant and a equation of variation where y varies inversely as x and y=1 when x=15
Friday, June 1, 2012 at 12:09pm by Randy

algebra
find the variation constant and an equation of variation where y varies directly as x and y= 24 when x=6
Thursday, December 15, 2011 at 9:04pm by Ashley

math
Which of the following is the equation of a direct variation that has a constant of variation equal to -? y = x - -y = x y = -2x y = -x
Thursday, May 19, 2011 at 3:34pm by Daniel

algebra 1 8th Grade
Find the constant of variation for the direct variation. F(x)=4.5x
Thursday, January 6, 2011 at 12:02am by shanequa

math
Why does inverse variation not hold (as x increases y decrease) when the constant of variation is negative?
Friday, May 21, 2010 at 10:11am by Stan

8th grade
direct variation: y= kx where k is the constant of variation. 15=k*3 find k.
Wednesday, January 14, 2009 at 8:59pm by bobpursley

9th grade
Is each equation a direct variation? If it is, find the constant of variation. y+8=(negative)4
Thursday, November 20, 2008 at 6:05pm by Savannah

algabra
find the constant of variation for each direct variation. 10y=13x and f(x)=4.5x and x+y=0
Tuesday, November 27, 2007 at 9:01pm by michael

algerbra
find the constant of variation for each direct variation. 10y=13x and f(x)=4.5x and x+y=0
Monday, November 26, 2007 at 10:46pm by dan

Microeconomics
What 's the difference between Compensated Variation (CV) and Equivalent Variation (EV) ?
Tuesday, October 23, 2007 at 11:17pm by Tri

algebra
Tell whether equation represents direct variation. If so, identify the constant of variation
Friday, January 4, 2013 at 6:55am by **LB**

Inverse Variation
H varies directly as J and inversely with M. If the constant of variation is 3/4, find H when J=16 and M=24.
Wednesday, November 9, 2011 at 4:51am by Anonymous

algebra
find the variation constant and an equation of variation where y varies directly as x and y = 54 when x =x6
Sunday, April 15, 2012 at 4:01pm by Terry

Algebra
Find the variation constant and an equation of variation where y varies directly as x and y=50 when x=10
Thursday, August 12, 2010 at 6:18pm by Tim

MATH Algebra
How do I find the variation constant and an equation of variation where y varies directly as x and y =70 when x=7
Saturday, September 12, 2009 at 10:26pm by Anonymous

Algebra
Find the variation constant and an equation of variation where y varies directly as x and y = 20 when x = 10
Thursday, April 17, 2008 at 12:15pm by Mary

Variation
Write the equation of direct variation for x = -5 and y = 90.
Monday, October 8, 2007 at 7:29pm by jazz

Inverse Variation
y varies inversely as x. When y = 18, x = 6. Find the constant of variation and determine the value for y when x = 27
Wednesday, November 9, 2011 at 4:51am by lance

Algebra-HELP
x and y vary directly. If y = 24 when x = 8, what is the variation constant and write the variation equation. explain work
Friday, November 4, 2011 at 3:19pm by Angelina

math
what is the different between direct variation and Inverse variation,, pls help i have a quiz tomorrow
Monday, September 12, 2011 at 9:52am by raffael

math
Find the variation equation for the variation statement. z varies directly as x and inversely as y; z = 3 when x = 24 and y = 40
Saturday, March 20, 2010 at 5:29pm by Anonymous

Algebra 1
The formula for direct variation is y = kx, where k is the constant of variation. For slope, use y - y1 = m(x-x1)
Sunday, December 9, 2007 at 4:49pm by jeff

direct variation or neither
Tell whether the equation represents direct variation or neither, 7=3x+2 represents A) represents inverse variation B) represents direct variation C) represents neither.
Friday, August 19, 2011 at 1:15pm by Tiara

college algebra
Find the variation constant and write a formula that expresses the indicated variation. c varies inversely as d, and c=5 when d = 2.
Friday, April 23, 2010 at 4:58pm by BJ

Variation-Check Problems
Can you please check my answers? Thanxs! Write an equation that expresses the relationship. Use k as the constant of variation. 20. f varies jointly as b and the square of c. -I got: f=kbc^2 22. r varies jointly as the square of s and the square of t. -I got: r=ks^2t^2 Find ...
Monday, October 8, 2007 at 8:41pm by Soly

BIOLOGY
Is eye color a discontinuous or continuous variation? Why is everyone saying that it's a discontinuous variation, when you obviously have a gradation of different colors around the world in the human population, and it's a polygenic trait determined by many genes! So ...
Sunday, November 27, 2011 at 1:54am by Dont delete the question

College Algebra
What is the difference between direct variation and joint variation and please put into words an example.
Wednesday, April 6, 2011 at 9:34pm by Kathy

BIo
How do segregation of alleles and independent assortment work to produce genetic variation? Why is variation important for the process of evolution?
Tuesday, December 9, 2008 at 10:24am by Anonymous

STATISTICS
The coefficient of determination deals with variation and is a measure of how well any given regression line represents its data. If a regression line passes through every point, all of the variation could be explained. The further the regression line is away from the points, ...
Sunday, April 17, 2011 at 6:12pm by MathGuru

math
Most of them are correct, but you need to correct the sign of some terms in problems 2,8,10,12 and the value of a coefficient in problem 7. The way to go really is to make your own check by redoing the problems without looking at the previous answers. This will actually help ...
Tuesday, August 11, 2009 at 3:25pm by MathMate

algebra
y varies inversely with x means that y = 1/x times some constant k. So, y = k/x is the general form of an equation of variation where y varies inversely as x. But now you also know that for a specific value x = 6, y = 1. Plug those values in to your equation to get something ...
Thursday, December 15, 2011 at 9:04pm by Willie

Stuck on Algebra 1
By the way, these problems are a special case of direct variation, linear. The relation could be quadratic, cubic quartic .... but is always of form y = k x^n Here so far we are assuming that n = 1
Saturday, January 5, 2008 at 5:34pm by Damon

Math: Direct Variation
what are the formulas that illustrates direct blinear variation ?? please help me !! i can't find any formula !! .. humpf .. :(
Monday, November 3, 2008 at 6:10am by cherry

Algebra
This is question 2 about direct variation For this problem, tell whether each relationship is a direct variation. Explain. x | 8 | 0 | -5 | y | 13 | 5 | 0 |
Wednesday, November 17, 2010 at 6:22pm by David

statistics defns
What is the coefficient of variation and how do I calculate it from a dataset? coefficient of variation is simply the standard deviation divided by the mean.
Thursday, March 1, 2007 at 10:45am by weldon

Differential Equations
solve using variation of parameters: y"+36y=[csc(6t)]^2 I don't understand variation of parameters very well at all.
Tuesday, April 24, 2012 at 9:34pm by Rosy

Algebra
Each ordered pair is a solution of a direct variation. Write the equation of direct variation. (2,10) (8,2) (7,21) (2,-16) Please Help!
Thursday, December 2, 2010 at 7:35pm by Caitlyn

Algebra
This is my third question about direct variation. For this problem, tell whether each relationship is a direct variation. Explain. x | -1 | 5 | 8 | y | -1.5 | 7.5 | 12 |
Wednesday, November 17, 2010 at 6:22pm by David

Stuck on Algebra 1
I do not think you will get direct variation that is quadratic etc in this course or they would have mentioned it. For now assume direct variation means y = k x
Saturday, January 5, 2008 at 5:34pm by Damon

Math
how do you find the constant of variation k for the direct variation? for example, 4x + -6y. how do you find k?
Friday, January 30, 2009 at 5:44pm by Angie

MATH-direct variation
Which of the following represents a direct variation function? The answer coices are A)d=2r B)y=9x+1 C)y=-3 D)a=1/2h(b1+b2)
Friday, June 10, 2011 at 8:08am by chelsea

Business Statistics
I'll give you a hint: Coefficient of Determination is explained variation divided by total variation (which is the correlation coefficient squared). I'll let you take it from there.
Sunday, March 15, 2009 at 7:49pm by MathGuru

Algebra
Is 3x-4y=7 a direct variation Is 6x-3y=0 a direct variation?
Wednesday, March 16, 2011 at 4:41pm by Dana

statistics
You wish to find the coefficient of nondetermination, which is the percentage of the variation in y that cannot be explained by the corresponding variation in x. Formula: 1 - r^2 I'll let you take it from here. Convert the decimal to a percentage for your answer.
Sunday, August 22, 2010 at 12:04am by MathGuru

Algebra
A direct variation is such that the ratio of y/x is always constant (but x≠0). For example, the line L: y=2x is a direct variation. Points on the line could be (1,2),(2,4),(5,10), noting that the ratio x/y is always 1/2. Consequently, the line passes through origin. The...
Thursday, December 2, 2010 at 7:35pm by MathMate

Math
These are all multiplication problems. 1/3 * 6/1 = 6/3 = 2 I'll be glad to check your answers for the other problems.
Monday, February 11, 2013 at 4:06pm by Ms. Sue

Statistics
Which, if any, of the values listed below for a correlation coefficient indicate a situation where more than half of the variation in one variable is associated with variation in the other variable? -.7 1 .3 .6 .9 I was thinking B
Monday, November 12, 2012 at 9:41am by Mike

Math: Direct Variation
i dont undestanding how solve direct variation
Thursday, September 21, 2006 at 12:44am by vanessa

Business Statistics
If the total variation in y values is 200, and the variation explained by regression line is 180, then the coefficient of determination is equal to __________. A) 1.11 B) 0.90 C) 0.81 D) 1.21 I picked D 1.21
Sunday, March 15, 2009 at 7:49pm by Stuart

Math: Direct Variation
how do you solve a direct variation problem?
Thursday, September 21, 2006 at 12:44am by nina

algerbra/math
Sky, I've done two examples for you. All your problems are the same. Your turn to try the other problems. Post your answers and I will check them for you.
Wednesday, February 23, 2011 at 2:03pm by Helper

math
Hi, How do I find the coefficient of variation? I found the sample variance and the standard deviation for the problem I'm trying to solve, but I can't find the coefficient of the variation
Sunday, May 3, 2009 at 6:00pm by Stella

Algebra 1
Is each equation a direct Variation? If it is, find the constant of variation: y=3/5x -3x+2y=0 -5x+2y=9 8x+4y=12
Tuesday, April 8, 2008 at 7:01pm by Kirstin

Algebra 1
How do you find the constant the variation andthe slope of the direct variation if y and x aren't given, and only the middle number is?? OK...clue me in on what you mean by the "middle" number.
Monday, November 27, 2006 at 7:42pm by heather

Joint variation
Find an equation of joint variation. Then solve for the missing value.f varies jointly as g, h, and j.One set of values is f = 18, g = 4, h = 3, and j = 5.Find f when g = 5, h = 12, and j = 3.
Wednesday, February 7, 2007 at 1:07pm by Anonymous

Math
I am confused with this problem, A 14.1 oz box of cereal costs $2.89. Find the constant of direct variation I dont know how to figure out the constant of direct variation and i need help.
Wednesday, February 29, 2012 at 12:34pm by Anonymous

Math
This can be reduced to 12y=x³, or y=x³/12 Direct variation have two properties: 1. it passes through the origin, i.e. if x=0, y=0. This property is satisfied by the above equation. 2. x and y are both linear, i.e. if you multiply x by any finite number, y ...
Tuesday, November 15, 2011 at 7:53pm by MathMate

algebra
This is easy 35 would go into 5 7 times so the answer would be variation constant is 7. this is a two part qustion the 2nd part is the same as the first but u add the x its called the equation of variation.
Tuesday, December 13, 2011 at 5:01pm by Chelsea

Algebra
For this problem, tell whether each relationship is a direct variation. Explain. x | -3 | -6 | -9 | y | 18 | 36 | 54 | My teacher didn't really explain direct variation very well, but i did catch that you put x over y. (Hopefully this helps)
Wednesday, November 17, 2010 at 6:22pm by David

8th grade
i have a homework assignment i do not know how to do. i was out sick so i have not learned this. hear is the question......y varies directly as x. find the constant of variation and write an equation for the direct variation. question 1: y=15 when x=5
Wednesday, January 14, 2009 at 8:59pm by gavyn

biology/honors
Charle Darwin made theory of natural selection but couldnt explain why there is variation within populations. Explain two reasons why there is variation within population ? PLEASE help me answer this question is for my test
Friday, May 20, 2011 at 2:39pm by mike

Math
I need the answers and the work shown steb by step today pls^^ For each direct variation find the constant of variation.Then find the value of y when x= -5 1.y=2 whne x=7 2.y=-2 when x=2 3.y= 17 when x=-4 y varies directly with x. 1.if y=6 when x=2,find x whn y=12 2.if y=7 ...
Tuesday, October 6, 2009 at 3:25pm by alex

Algebra 2
Let (x1,y1) be a solution, other than (0,0), of a direct variation equation. Write an second direct variation equation whosegraph is perpindicular to the graph of the first equation.
Tuesday, October 12, 2010 at 7:58pm by Bob

Statistics(Please help)
If by C.V. you mean Coefficient of Variation, then CV shows the variation as a percentage of the mean and can be calculated as follows: CV% = (SD/mean)100
Tuesday, August 2, 2011 at 3:40pm by MathGuru

Physics Light and Color
The depth perception cue employed in the old-fashioned stereoscopes but not in plain photographs is: (a) variation in color, (b) variation in sharpness, (c) binocular disparity, (d) previous knowledge. (Choose one.)    
Monday, December 6, 2010 at 8:06pm by Amanda

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