1,744 Answered Questions for the topic Functions

07/19/17

Algebra 2 Homework Help with Explanation and Answer Please
Part I : The graph of F(x), shown below, resembles the graph of , but it has been flipped over the x-axis,stretched vertically by a factor of 3, shifted down 4 units, and left 1 unit.Part II :... more
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Functions

07/01/17

John is participating in a marathon that is 26.2 miles and he finishes in 4.5 hours. His distance, d, depends on his time,t.
Which Is an appropriate domain for this situatio?
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Functions

06/25/17

I would like to know the solution. I am confused on how i will represent the "every additional 300 meters"
  A taxi ride costs 40 for the first 400 meters and each additional 300 meters adds 3.50 to the fare. Use a piecewise function to represent the taxi fare in terms of the distance in meters.  
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Functions

06/16/17

identify the function represented by f(x)=4(1/3)^x
I need help figuring out the function of this problem. Please help?
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05/26/17

The length of a rectangle is represented by....
The length of a rectangle is represented by the function L(x) = 4x. The width of that same rectangle is represented by the function W(x) = 7x2 - 4x + 2. Which of the following shows the area of the... more
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05/26/17

The graphs f(x) and g(x) are shown below:
The graphs of f(x) and g(x) are shown below: F(x) is a parabola with a minimum of -12, and its zeros are -3 and 4. G(x) is a straight line and the y-intercept is 0.4. It intercepts f(x) at (-3.8,... more
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05/26/17

Functions, functions and more functions! :-)
The following function represents the production cost f(x), in dollars, for x number if units produced by compang 1:  f(x) = 0.15x^2 - 6x + 400   The following table represents the production... more
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Functions Domain

05/25/17

Domain of composition
If the domain of g(x) is the set Dg={x|x|}≠0 and the domain of f(x) is the entire number line, then   a. what is the domain of the composition f(g(x))?   b. what condition defines the domain of... more
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Functions

05/25/17

Given Functions
For the given function f(x) and f(a) and f(a+h); then use them to find f(a+h)-f(a)/h   f(x)=x2+2
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Functions

05/25/17

Composition for the functions
f(x)=x+1 w(x)=sqrt(x+2)   (w º f)(x)
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Functions

05/17/17

[x]^2= x + 2{x} Solve for x.
[.] is greatest integer function of x and {.} is Fractional part of x. Solve for x. Has 4 solutions.
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Functions Calculus 1

05/12/17

simplify the difference quotients
f(x+h)-f(x)/h and f(x)-f(a)/x-a   for the following function by rationalizing the numerator.   f(x)=sqr rt of x^2-8
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05/11/17

What is inverse of f(x)=12e^2x? Based on your answer, write an expression equivalent to x where f(x)=10.
I have tried for roughly an hour with no improvement, please help.
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Functions Domain Range

05/11/17

Domain and Range
Find the domain and range of the function   y={x+1 if -5<x<0       x2    if 0≤x≤5
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Functions Graph Value

05/11/17

value of a using graph
Find the value of "a" using the graph:   y=f(x)   f(0)=a f(a)=0 f(a)=-1 f(a)=1   Graph shows curved line with points at (-1,1) (0,0) and (1,-1)    
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Functions

05/10/17

Complete the table of values. Use a calculator when necessary and round to the nearest hundredth. Have no sample problems for this.
x e^x -4 -3 0 3 4
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05/10/17

The graph below shows a company's profit f(x) in dollars
The graph below shows a company's prodit f(x), in dollars, depending on the price of pens x, in dollars, being sold by the company:    The graph is a parabola shaped like a frown. The... more
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05/09/17

QUESTION IN DESCRIPTION PLEASE HELP
You are ordering photo prints online to send out to all your friends for the holidays. The first 20 prints cost 12¢ each. If you order more than 20, The price of the additional prints goes down to... more
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05/09/17

QUESTION IN DESCRIPTION PLEASE HELP
3. The minimum payment on a credit card is based on the total amount owed. A credit card company uses the following rules: For a bill less than $20, the minimum payment is the entire amount due.... more
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05/08/17

Jacob kicks a soccer ball off the ground and into the air, with a velocity of 33 feet per second.
Jacob kicks a soccer ball off the ground and into the air, with an initial velocity of 33 feet per second. Using the formula H(t) = -16t + vt + s, what is the maximum height the soccer ball reaches? 
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05/08/17

Determine the reasonable domain
A food packet is dropped from a helicopter and is modeled by the function f(x) = -15x2+ 6000. The graph below shows the height f(x), in feet, of the food packet at different times x, in... more
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05/08/17

Functions f(x) and g(x) are described as follows
(This question is on my study guide for the final exam and I do not fully understand how to solve this. Can somebody please show me how to so I can be better prepared for my exam?)  :-)    F(x)... more
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Functions

05/07/17

Let f(x) = √x+2 and g(x) = x^2 - 2, then find f ○ g and g ○ f
Would appreciate a step by step for this problem so I truly understand it.
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05/06/17

How many seconds after it was hit did the ball hit the ground, to the nearest second?
The following function gives the height, h metres, of a batted baseball as a function of the time, t seconds, since the ball was hit.   h = -6(t-2.5)^2 + 38.5 
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Functions

05/04/17

Calculate the indicated value of each function.
f(x)=–11x^2–7x+14. Find f(10).  
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