# real-life step function

33,918 results

### real-life step function

So if I wanted to do a step-function graph for gas prices, how would that work? I'm a little confused. Could someone give me examples please? That would be so helpful (: Thanks!

### college algebra

find a real-life application of a quadratic function. State the application, give the equation of the quadratic function, and state what the x and y in the application represent. Choose at least two values of x to input into your function and find the corresponding y for each...

### math

I am supposed to come up with a real life problem and then write a function to represent that real life scenario, but I am not confident in my answer. Could you look it over and tell me if I did it correctly? The basic cell phone plan costs 19.99 a month plus an additional fee...

### Math

I need help with scales and converting them to real-life measurements. So, there's this line on the page that measures 1 metre in real life. I measured it with my ruler and it is 9.3 cm. So the scale is 9.3 cm = 1 m. But how would I convert measurements with my ruler into real...

### Math

Is the step function differentiable in its domain? I answered it and said that the step function is not differentiable in its domain because it is not continuous. For the a function to be differentiable it would need to have a value and a limit. However, the step function has ...

### Algerba

Solve for x. Round answers to the thousandths place. 3^x=17 5.667 2.579 <-- 3.093 0.388 Given its parent function g(x)=(1/2)^x , what is the equation of the function shown. f(x)= -2(1/2)^x+1 f(x)= -(1/2)^x-3 <-- or A f(x)= -3(1/2)^x+1 f(x)= -(1/2)^x-1 Which expression is...

### Math

What is the differnce between a range and domain how can I tell if it is a function or non function. I need a real life example Please help!

### Algebra

What is the difference between domain and range? Describe a real life situation that could be modeled by a function? I think I understand domain and range. Domain is the x axis and range is the y axis correct? I need help with applying it to real life. Thank you.

### College Algebra

Find a record breaking temp. for a city. Include name of city, temp., and record broke. Give the formula for converting degrees F. to degrees C. Using the formula show how to convert to degrees C. Part 2) Find real life application of a linear function. State the application, ...

### math

I'm having trouble understanding one step in a proof of the Cauchy-Schwarz inequality: u = a non-zero vector v = another vector a = <u,u> (so a > 0 by positivity axiom) b = 2<u,v> c = <v,v> (so c >= 0 by positivity axiom) t = any real number 0 <= <...

### Algebra

1. How many real solutions does the function shown on the graph have? The graph is following the function: y=(x+2)^2 A. No real solutions B. One real solution** My answer C. Two real solutions D. Cannot be determined 2. What is the solution to 3x^2+3x+5=0? I have the answers ...

### college algebra

find a real-life quadratic function

### algebra

What is an example of a real life situation that could be modeled by a function.

### Algebra

Can you please give me some real life examples of using variables and solving equations. These are 6th grade students and I need to show real-life experiences. Thanks!

### College Algebra

Using the 7 steps outlined in section 4.3 of your book, analyze the graph of the following function: R(x) = x^2 - 49/x^4 - 16 Step 1: Factor the numerator and denominator of R and find its domain. If 0 is in the domain, find y-intercept, R(0), and plot it. Step 2: Write R in ...

### computer science

Can you find the reason that the following pseudocode function does not return the value indicated in the comments? // The calcDiscountPrice function accepts an item’s price and // the discount percentage as arguments. It use those // values to calculate and return the ...

### principals of math

a triangle drawn on a map has sides of lenghts 7.0 cm, 11 cm, and 15 cm. the shortest of the corresponding real-life distances is 123km. find the longest of the real-life distatnces. round to the nearest unit.

### math

Describe a real life situation that could be modeled by a function. A real life situation is: A family decides that they want to get the carpet done in their house. They already have all the necessary material to do the work but they do not know how. They need to hire someone ...

### math

Is the function a polynomial function? Why or why not? If it is a polynomial function identify and label the leading term and constant term. Here are the functions f(x)=(2-x^4)/13 f(x)=x^3+9x-(1/x) it would be great if you could do everything step by step and showing your work.

### Chemistry

Uranium-238 has half life of 4.51 * 10^9 years Uranium-234 has half life of 2.48 * 10^5 years Thorium-230 has half life of 8.0 * 10^4 years Radium-226 has half life of 1.62 * 10^3 years Lead-210 has half life of 20.4 years. The rate constant for the decay of unstable nuclide X...

### Algebra

I just need an example of a real-life application of a quadratic function. Thanks so much!

### Math

Explain in 2-3 complete sentences how using function tables can be useful in real life.

### math

What is the difference between domain and range? Describe a real-life situation that could be modeled by a function

### math

What is the difference between domain and range? Describe a real life situation that could be modeled by a function.

### math

What is the difference between a domain and a range? Describe a real life situation that could be modeled by a function.

### algebra

What is the difference between domain and range? Describe a real-life situation that could be modeled by a function

### Algebra

What is the difference between domain and range? Describe a real-life situation that could be modeled by a function

### math

What is the difference between domain and range? Describe a real-life situation that could be modeled by a function

### Algebra

What is the difference between domain and range? Describe a real-life situation that could be modeled by a function

### Calculus

Use the four-step process to find the slope of the tangent line to the graph of the given function at any point. f(x) = 16 - 10 x Step 2: f(x + h) - f(x) = Step 4: f'(x) = lim(h->0)(f(x + h)- f(x))/h =

### College Algebra ~ Please Help

Can someone give me some real life applications that I can use for a quadratic function.

### math

What is the difference between a domain and a range? Describe a real life situation thatcould be modeled by a function.

### Math

please go step by step to better understand if 2f(x)+f(1-x)=x^2 for all real numbers, the f(x)=?

### algebra

find the real number solutions of the equation. w^4+w^3-w=1 could you please show step by step..thank you

### math

please go step by step to better understand if x,y,z are three different real numbers with y/x-z=x+y/z=x/y, evaluate x/y

### factoring

can this equation be factored further? y= x^4+2x^3+4x^2+8x+16 Not in the real number system. If you plot the function, you will see the minimum is at x=-1.1 (approx) and y is positive. At no x does the function equal zero, so there are no real roots, which means, no factors. ...

### Algebra

The following functions are defined for all real values of x. Find the range of the funcion. 1) y=m^2-4m-5 2) y=-9v^2-18v-55. Thank you for your help. (Please step by step.

### algebra

What point in the feasible region maximizes the objective function? Step by step please x¡Ý0 y¡Ý0 Constraints -x+3¡Ýy y¡Ü1/3x+1 objective function C=5x-4y

### English

I need a real life example on how growing up or maturing involves seeing and experiencing pain. We used examples from this book we were reading but I also need a real life example and I can't think of one

### Calc

Set up an exponential function to model each real world situation then use it to find the requested values. The half-life of Carbon 14 is about 5700 years. You begin with 800 grams of this isotope. 1) Function: 2) How much Carbon 14 is there after: a) 11,400 years b) 45,000 years

### Math

The twice–differentiable function f is defined for all real numbers and satisfies the following conditions: f(0)=3 f′(0)=5 f″(0)=7 a)The function g is given by g(x)=e^ax+f(x) for all real numbers, where a is a constant. Find g ′(0) and g ″(0) in terms...

### math 116

What is the difference between domain and range? The domain of a function is the set of all values for the independent variable (in the following example, that's the x) for which the function is defined. That is, if you have a function such as f(x) = 1/x Then this function is ...

### algebra 2

In the function f(x)=(x+5)^4 +k , for which values of k does the function have two real solutions? no real solutions? Explain?

### math

In the function f(x)=(x+5)^4 +k , for which values of k does the function have two real solutions? no real solutions? Explain?

### algebra

come up with 2 real world examples of situations that use function rules. think about daily life, your home, or the community you live in for ideas.

### Tech Ed

How can simulations be used in education? A.They allow people to touch a real item through the computer B.They provide a realistic experience that students may not get in real life C.They substitute games for learning D.They make games real My answer B?

### educational and tecnology

how can simulations be used in education A( they allow people to touch a real item through the computer B( they provide a realistic experience that students may not get in real life C( they substitute games for learning D( they make games real

### Math Algebra 1111

If the domain of a function F is the set of all real numbers and the domain of a function G is the set of all real numbers, under what circumstances do (F+G)(x) and (F/G)(x) have different domains? Whenever G(x) = 0 then the domains would differ. For example, if F(x) =x+2 and ...

### Visual arts

If an artwork is realistic, it means ____________________________. A. it is from the artist's imagination B. it does NOT look like a real thing from life C. it DOES look like a real thing from life D. it is abstract *** My answer = *** Thank you for your time please no links

### Sequence and series

Do you know the difference between a sequence and a series? Graph the terms of an arithmetic series. Remember the domain is the set of natural numbers, not the set of real numbers. What type function do you see? Graph the terms of a geometric series. Remember the domain is the...

### Math

"A fix it business charges 40 dollars per hour or any fraction thereof. Write a step function for the costs up to 3 hours." I'm not sure how to go about this...I know that it's a step function, but I'm not sure how I would go about writing it. Help ASAP please! Thank you so much!

### College Algebra

3x-1/x^2-10x+26 Find all (real) zeros of the function Find all (real) poles of the function The function has... A horizontal asymptote at 0? A non-zero horizontal asymptote? A slant asymptote? None of the above

### ALGEBRA HELP

When solving the equation, what property was used to go from step 3 to step 4? Step 1: -(2x+3= x-18 Step 2: -2x-3=x-18 Step 3: -3=3x-18 Step 4: 15=3x A)APOE B)SPOE C)MPOE D)DPOE

### maths(urgent)thanks.

a parabola with turning point at (1,-2) and passing through the origin.find the equation of this parabola. how do i do this? can someone please show me how to solve it step by step?thanks! You know that at x = 0 the function is zero. Because the turning point is at x = 1 must ...

### Family Life

how to create a step-by-step action plan.

### Pre-Calculus

A rectangle is bounded by the x-axis and the semicircle y = √36 – x2, as shown in the figure below. Write the area A of the rectangle as a function of x, and determine the domain of the area function. A = all real numbers except x = 36 all real numbers except x = 6 0 &...

### Algebra 1 ( Inequalities and their Graphs)

Come up with 2 real world examples of situations that use function rules. Think about your daily life, your home, or the community you live in for ideas. . Can i get an example because i don't know how to do this..

### 7th Grade Math Help

Hi, I really need some help with this. What is one example of how prime factorization is used in real life? I really don't know and I know what example you can use for factoring in real life but not this one. Please help as fast as possible! I really appreciate it! :)

### Statistics

An insurance sales representative selects 4 policies to review. The group of policies she can select from contains 10 life policies, 5 automobile policies, and 3 homeowners policies. Find the probability of selecting all life policies. The number of ways to select all life ...

### 6th grade math

Complete the function table. Then write a rule for the function table. Input Output -3 [missing] -2 -4 -1 [missing] 0 [missing] 1 -1 Please show step by step and explain. Thank you!

### Education technology

how can simulations be used in education? 1. They are allowed people to touch a real item throug the computer. They provide a realistic experience that students many not get in real life.•• They substitute games for learning. They make games real. Correct me

### math

usethe rational zero theorem to find all real zeros of the polynomisl function.Use the zeros to factor f over the real numbers. f(x)=x^4+2x^33-7x^2-8x+12 what are the real zeros?> use the real zeros to factor f f(x)=

### Algebra

22. State the domain of the function y=3x+2 a. D: Real numbers b. D: x not equal to 0 c. D: x < 0 A? 23. State the range of the function y=2x^2 a. R: y greater than or equal to 0 b. R: x not equal to 0 c. R: y < 0 I'm not sure? 24. Is y=sqrt2x a function? a. Sometimes b...

### Educational and Online Learning

How can simulations be used in education? A. They allow people to touch a real item through the computer. B. They provide a realistic experience that students may not get in real life. C. They substitute games for learning. D. They make games real My answer is B

### Algebra

I've learned that the difference between domain and range is.....domain is the set of possible X values and range is the set of possible Y values. also, a domain is the values that a function maps "from" and the range is the values that a function maps "to" I am having ...

### Math

can you show me step by step how tot find the domain of a function like this h(x)=7x-2

### math

show me step by step how to find the domain of this function then graph it g(x)=2x-4

### Algebra

Find the zeros the function *could someone explain this to me step by step I'm very confused Y=x^2-x-42

### math

Let the Function a @ b be defined as 3a + 2b for all real numbers a and b. If u and v are real #'s for which u and v = v @ u = 20. What is the value of 2u @ 3V?

### Math

Express this function in vertex form by completing the square: 3x^2 - 4x + 1 PLEASE SHOW STEP BY STEP!!!

### life science

Investigation to determine whether expired air contains carbon dioxide how should state the method,step by step for the experiment

### Life Sciences

Investigation to determine whether expired air contains carbon dioxide How should state the method, step by step for the experiment

### algebra2

Find the values of x and y that maximize the objective function P=3x + 2y for the graph. What is the maximum value. step by step please

### Math

What is the domain and range fro the expentiral function f(x)=-2x4^x-1+3? Domain:all real numbers Range:all real numbers less than 3 Domain:all real numbers Range:all real numbers greater than 3 Domain: all real numbers greater than-2 Range: all real numbers less than 3 Domain...

### physics

We have to do a lab in physics where we research and write on real life applications of momentum, the guidelines we have are Research Assignment: Application of Momentum in Real-Life Situations Task: Choose any real-life situation where the concept of momentum is involved and ...

### Pre-calculus

can someone show how to graph step by step the polynomial function -x^4 - 4x^2. That is -x to the fourth power minus -4x squared. Please Help!!!

### Calculus

I need step-by-step help for solving the lim x -> 0 for the function sin(x)/(x + tan(x)) I can do simpler ones, but this one throws me off. Thanks.

### CALCULUS HELP

Find the derivative of the following function showing your work and fully simplifying your answer. STEP BY STEP PLEASE!!! f(x)=(8x-3)^5/(6x+7)^12 THANK YOU SO MUCH!!!

### Math

Which set of output values correctly competes the function table. (y=2x-4) Input (x) 6 ? 2 ? -4 ? 1. 8,2,12. 2.8,0,12. 3.8,0,-12. 4.-8,0 12. Please give me step by step of how to solve this.

### algebra

Find a bound on the real zeros of the polynomial function f(x)=x^4+x^3-4x-6 Every real zero of f lies between ______ and______.

### 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 ...

### Algebra help

f(x)=x^3-4x^2-x+4 How do I find the x-intercept for this? This is from my book: step 1: 0=x^3-4x^2-x+4 step 2: 0=x^2(x-4)+(-1)(x-4) step 3: 0=(x^2-1)(x-4) I know how to solve once I get to step 3, but in step 2, I don't know what they've done or why. Where does that (-1) come ...

### Quick math help

In which step below does a mistake first appear in simplifying the expression? 0.5(-12c+6)-3(c+4)+10(c-5) Step 1: -6c+3-3(c+4)+10(c-5) Step 2: -6c+3-3c-12+10(c-5) Step 3: -6c+3-3c-12+10c-50 Step 4: 7c-41 Please help me!!! Thank you!!

### aps

There are 26 step on flpor at the time saad comes down two step imad step up one step When will tyey meet at what step?

### science

Does anybody know any real life example of a nucleus Are you speaking of nucleus as in the nucleus of an atom or the nucleus of a living organism? If the former, the nuclear atom bomb or H bomb or the decay of radioactive materials to bombard some cancer patients to kill the ...

### math

Thank you for your help :) "The piecewise function f(x)= n(x^3)-x______when____x<(or=to)1 =m(x^2)+5_______when_____x>(or=to)1 is differentiable everywhere. What is n? If you could explain step by step how to do this that would be great because I just do not see how to do...

### CALCULUS

Find a formula for the inverse of the function. y=x^2-x, x>=(greater than or equal to) 1/2 Please give me a step by step explanation. I think my algebra is wrong... Ty

### Intro to Trig

Which of the following best corresponds to the x-value where the function f(x)=cos x is a minimum in the interval x = [25,30]? A) 25.1 B)26.7 C)28.3 D)29.8 Can someone show me how to solve this step by step? Thanks :)

### college algebra

form a polynomial f (x) with real coefficients having the given degree and zeros. degree 5; zeros 5; -i; -6+-i f(x)= a(?) Please show step by step work.

### calculus

Find a rational function f : R → R with range f(R) = [-1, 1]. (Thus f(x) = P(x) /Q(x) for all x belongs R for suitable polynomials P and Q where Q has no real root). R(real numbers)

### Algebra

Write a real world problem that you can model with the two step equation 5x+7=10. Then solve the problem. I understand that the answer is 3/5, but how would I put this in a real world situation?

### Life Science

determing whether expired air contains CO2. 1.Formulate hypothesis 2.Aim 3. a) idependent V, dependent and controlled variables 4. methods step by step 5. observation

### Algebra II

How many real solutions does the function shown on the graph have? a) no real solutions b) one real solution c) two real solutions d) cannot be determined ___________________________ y = (x+2)^2 + 3 is shown on the graph. I am having trouble figuring this one out. I have been ...

### Calculus

A real estate office manages 50 apartments in a downtown building. When the rent is $900 per month, all the units are occupied. For every $25 increase in rent, one unit becomes vacant. On average, all units require $75 in maintenance and repairs each month. How much rent ...

### Pre Calc

Write an equation to a polynomial function that has the following properties: Fourth degree equation Lead coefficient is -2 Two negative real roots and one positive real root The positive real root has multiplicity of 2

### chem

ok my professor lost me when explaining this material so please bare with me and help me step by step one of the questions is: after absorbing 1850J of energy as heat, the temperature of a .500-kg block of copper is 37C what was its initial temperature (the specific heat ...

### geometry

Create a word problem about a real life situation involving perimeter and area of a composite shape. I don't know any real life situations involving perimeter and area of a composite shape. Need Help. Please Help.

### college algebra

1. solve the following logarithmic equation log_8(x+8)+log_8(x+7)=2 what is the exact solution 2.se the rational theorem to find all the real zeros of the polynomial function. use the zeros to factor f over the real numbers. f(x)=4x^4+5x^3+9x^2+10x+2 a.find the real zeros of f...

### Tech Ed

How are virtual field trips helpful in education? A.They let students visit locations through video and images that they might never be able to visit in real life. B.They let students pick up objects in real life C.They let students post their field trip experiences online D....