1,744 Answered Questions for the topic Functions

Functions

12/07/15

Use the equation to answer all parts of the question. 1. f(x)=(x-4)(x+2) Vertex? Axis of symmetry? Max/min? Zeros? Standard form?
Help please 
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Functions Algebra

12/04/15

an investor is considering purchasing a 20 acre plot of land in order to grow lumber.
an investor is considering purchasing a 20 acre plot of land in order to grow lumber. the following data are available for lumber volume in 100s of board feet for different diameter... more
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Functions Algebra 2

12/04/15

composition of functions
can someone explain this to me? If h(x) = 6 – x, what is the value of (h*h)(10)
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Functions College Algebra

12/03/15

Finding smallest degree that f(x) could have?
I need help determining the smallest degree a function can have given the graph.
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Functions Domain

12/02/15

Find the domain of the function
Given the function f(x)=log (5-8x) a. find the domain of the function in set notation b. solve the function when f(x)=0
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12/02/15

PROBABILITY DENSITY FUNCTIONS!! HELP WITH ONE PART!!!!
Assume that the machine yields the item selected 75 percent of the time, and returns nothing 25 percent of the time. Three individuals attempt to use the machine. Let X be defined as the number of... more
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12/01/15

Using functions
The function g is defined as:g:x→ a/x + bwhere a and b are constants.If g(-2)=0 and g(3)=10Find the values of a and b.
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Functions

11/29/15

What is the start up cost? And How many must they sell to break even?
Harry and his sister started selling books. The profit function, in dollars for selling x books is        f(x)=-0.5x^2+25x-112.5 
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Functions Function

11/26/15

Using Functions
The function g is defined as:g:x→ a/x + bwhere a and b are constants.If g(-2)=1 and g(3)=6Find the values of a and b.
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Functions

11/23/15

Evaluate the function
Find f(-3) when f(x)=2x²+3x+5
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Functions

11/23/15

Evaluate the function
Find g(a-1) when g(x)=2x-5
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Functions Algebra 2 Algebra

11/19/15

Write the equation 4x+2y=-2 as a function f(x).
Thanks for any help
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Functions Equations

11/18/15

x^(2/3) + 2 = 3x^ (1/3)
x^(2/3) + 2 = 3x^ (1/3)
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Functions Real Zeros

11/18/15

Use descartes rule of signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function: f(x)= 9x^7
Use descartes rule of signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function:f(x)= 9x^7 + 3x^5 - 8x^3 + 7x - 1
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Functions

11/18/15

Find (f°g)(x)and (g°f)(x)for f(x)=5-4xand g(x)=x2-4.
(fog)(x) = ? (gof)(x) = ?    
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11/15/15

Use descartes rule of signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the following function: f
Use descartes rule of signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the following function: f(x)= 9x^7 + 3x^5 - 8x^3 + 7x -1
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Functions Coefficients Degrees

11/15/15

Given the function
Given the function f(x)= -5.6^6 + 9x- 0.6x^8+3 a. State the degreeb. name the leading coefficientc. Describe the behavior of both ends of the graphd. is the function odd, even or neither?e.... more
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11/11/15

Does the set of coordinate pairs (0,3) (1,3)(2,1) represent a function. Explain
The answer has to be a yes or no answer. Also you need to explain the problem 
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11/09/15

Find the time it hits the ground and the time it reaches its highest point.
A pomegranate is thrown from ground level straight up into the air at time t=0  with velocity 96 feet per second. Its height in feet at t  seconds is f(t)=−16t^2 +96t  . Find the time it hits the... more
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11/09/15

h(t)=-4.9t^2 + 100t+206
NASA launches a rocket at t=0  seconds. Its height, in meters above sea-level, as a function of time is given by h(t)=−4.9t^2 +100t+206  . A) Assuming that the rocket will splash down into the... more
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Functions

11/09/15

Tell me the dimensions and the maximun total area
A rancher has 320  feet of fencing to enclose two adjacent rectangular corrals. a)What dimensions will produce the largest total area? (separate by commas) b) What is the maximum total area? 
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Functions

11/09/15

the following sets of points a function
2,3 3,4 4,4  
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11/09/15

Given the function f described by f(c)= -3c+5., find the following: f(c+7)=_____
 Given the function f described by f(c)= -3c+5., find the following: f(c+7)=_____
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Functions Algebra

11/07/15

This is a practice question in my work book, but i'm so confused
 f is a function that takes a real number x and performs these four steps in the order given: (1) Multiply by -1. (2) Add 1. (3) Take the square root. (4) Take the reciprocal. (That is, make... more
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Functions Precalculus

11/07/15

A rancher has 320 feet of fencing to enclose two adjacent rectangular corrals.
A rancher has 320  feet of fencing to enclose two adjacent rectangular corrals. a) What dimensions will produce the largest total area? b) What is the maximum total area? 
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