1,744 Answered Questions for the topic Functions

Functions College Algebra

05/03/14

Complicated function
The number of households f(x),  in millions. participating in the Food Stamp Program from1999 to 2004 (where x = number of years) is represented by the functionf(x) = 0.78x^2 -5.5x+12.68a. During... more
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Functions College Algebra

05/03/14

Function help?
A water balloon is dropped from the roof of a 60-foot building with an initial velocity of 20feet per second. The height of the balloon can be modeled by a function. a. What is tire function that... more
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05/02/14

Find the range of this function
The function f : C → C is given by f(z) = z² + 14.   What should I do to find the range of this function?
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Functions

04/29/14

what is the square route of 6
what is the square route of 6
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04/29/14

compositions of functions
Use composition of functions to show that the functions f(x)=8-3x and g(x)=-1/3 x+8/3 are inverse functions. That is, carefully show that (fog)(x)=x and show that (gof)(x)=x. Show work.
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Functions

04/26/14

How do I find the function using the graph?
I have a graph, how do I find the function used to create it?
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Functions

04/18/14

algebra help
f(x)=x+2 g(x)=4x^2-10 (FoG)(x) (GoF)(x)
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Functions Algebra 1

04/18/14

algebra help
f(x)=x+2 g(x)=4x2-10 (f+g)(2)
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Functions College Algebra

04/14/14

Find the domain of the function
f(x)=(3x-6)/(x^2-25)
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04/14/14

Determine the domain
Determine the domain of the functions show work   a) f(x)= 1/x^3   b) f(x)= (x+4)^2/4x-3   c) f(x)= x^2+3x-10/x^2=2x
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04/13/14

Logarithms Function*
This question is really confusing me:   If f(x) = 3x-2, Find f(log3a) for a>0   Step-By-Step would be greatly appreciated!
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04/12/14

Applications of Sinusoidal Functions and Their Derivatives
A differential equation is an equation involving a function and one or more of its derivatives. Determine whether the function y=πsinθ+2πcosθ is a solution to the differential equation d^2y/dθ^2 +... more
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Functions

04/10/14

how do you slove g(x)=13 if g(-2)+g(-10)
how do you slove g(x)=13 if g(-2)+g(-10)
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04/09/14

functions help please
Let f(x)=x^(3 )-7x. Determine if this function is even, odd or neither. Explain/Show work.  
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04/09/14

Functions please help
Let f (x) = 3x2 – 5x + 9 and g(x) = 1 – 4x. (a) Find the difference (f – g)(x) and simplify the results. Show work. (b) Find the composite function (f o g)(x) and simplify the results. Show work.
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04/08/14

Differentiation Rules for Sinusoidal Functions
1. Find the slope of the function y=2cosxsin2x at x=π/2   2. Find the equation of the line that is tangent to y=x2sin(2x) at x=-π   3. Determine the second derivative for y=x2cosx
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04/06/14

f(x) help show work
Let f(x)=(2x-3)/(x+5) (a)Calculate f(-2) (b) State the domain of the function f(x)=2x-3/x+5 (c) Find and simplify as much as possible: f(t+1) . Show work.
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03/29/14

What is the range of this function?
f(x)=2 sqr(-x^2+4) - 2 the range is R:{y| -2 ≤ y ≤ 2, yER) How do i get this answer?
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Functions

03/16/14

given f(x)=2x-5, construct a function g such that g(f(x))=x
 another question: Given f(x)=2x-5, construct a function g such that g(f(g(5)))=3
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Functions

02/10/14

Following an unexplained decline in the number of birds of prey on his property, a farmer sees a drastic rise in its small mammal population.
Following an unexplained decline in the number of birds of prey on his property, a farmer sees a drastic rise in its small mammal population.    the function M(t) = 500(1.2)^t can be used to... more
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Functions

02/09/14

Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -4x^2 + 2x + 6
Select the approximate values of x that are solutions to f(x) = 0, wheref(x) = -4x2 + 2x + 6.a.{–1.00, 1.50} b.{-4, 2} c.{–0.50, –1.50} d.{–0.67, 0.33}
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Functions

02/09/14

f(x) = 0, where f(x) = -8x2 + 8x + 7.
Select the approximate values of x that are solutions to f(x)=0, where f(x)=-8x^2+8x+7   a.(1.56,-0.56) b.(-8,8) c.(-1.00,-0.88) d.(-1.14,1.14)
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Functions

02/09/14

What are the factors of x^3-10x^2+17x+28
What are the factors of x^3-10x^2+17x+28
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Functions

02/08/14

What are the factors of x^3-10x^2+17x
What are the factors of x^3-10x^2+17x
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Functions

02/05/14

Find the number of days when 0.999 people of a group is discharged
Total proportion discharged at the end of t days of hospitalization can be obtained by:   f(t)=1-(300/300+t)^3   Please include the workings for the following... more
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