1,744 Answered Questions for the topic Functions

Functions

05/30/16

Do the following ordered pairs correspond to a function?
(1, 5), (1, 6), (2, 7), (4, 8), (6, 9)
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05/29/16

Functions ..... pls do help.... questions are in the description
1)-Let f(x)=|x^2-9|-|x-a|. Then the number of integers in the range of a do that f(x)=0 has 4 distinct real root is k . Then find the sum of the digit of K. Ans-8 2)-Find the sum of all integral... more
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05/28/16

Functions Word Problem
Jerry plans to begin saving money for a trip by putting $1 in a savings account the first month and then adding enough to double the amount in the account each following month.After he finishes... more
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05/18/16

Functions project... Help!
For an upcoming project I have to pretend to create a virtual race as a spinoff if the Tortoise and the Hare. The animals I am using are an elephant (25 mph) and a mouse (8 mph). I have to write a... more
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Functions

05/14/16

functions problem
For which values of x will the relation not be a function? R={(x2+7x, 3), (−6, 4)}
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Functions

05/14/16

functions problem
f(x)=g(x)−1, g(x)=5x+2. Find f(4)−g(2)
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Functions

05/14/16

functions problems
f(x)=g(x)+1, g(x)=5x+2. Find f(3)−g(2)=
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Functions Math Help

05/06/16

What's the value of b?
The function g is defined by g(x)=2x3-8x2-bx+140. In the xy plane, the graph of g intersects the x-axis at (2,0), (-5,0), and (m,0). What's the value of b?
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Functions Math Help

05/06/16

What's the value of f(9)?
In a linear function f(4)=6 and f(-2)=14. What's the value of f(9)?
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Functions

05/05/16

Use the given function:
\(f(x)\) = {2x+1,if −2≤x<4|                {x⁄2   ,if 4≤x≤8  | Find the value of f(x) at x = 2 and 6. A. 5 and 3B. 5 and 7C. 2 and 3D. 1 and 3
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Functions

05/03/16

Find the function rule.
I'm having a very hard time on this question.. x: -2, -1, 0, 1, 2 y:  9,  4, -1, -6 ,-11  
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Functions

04/29/16

Simplifying Functions
If f(x)= 4x—3 , simplify : f(1+h)—f(1)/h      The last part when you simplife I don't know if I leave at 3+4h/h or if it's 7 ?
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Functions Math Help

04/29/16

Function help
If f(x)= √2x-4, what is f(f-1(-4))? 
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Functions Polynomials

04/26/16

find the value of b given that the polynomial f(x)=x^3+bx^2-4x-5 when divided by x-3 and has a remainder of -8.
There is no additional details about my question as i dont know what to do and how to start
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04/24/16

Functions and graphing calculator help
y=log3(x)+1 a)To use a graphing calculator to graph this function, what equivalent function must be used? b) what is the equation of the vertical asymptote?
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Functions

04/22/16

Find the requested function value
Find (fog)(9) when f(x)=-7x+6 and g(x)=-5x^2-9x-3
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Functions

04/17/16

What is the new equation?
B(X)= 2(3)^x+4 +1 is the orignial. write a new equation of C(X) if b(x) is reflected vertically, transformed 3 units to the right and 2 units down 
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04/13/16

Given the function f(x)=3^x-1+2, find the y-intercept and express in coordinate point form.
A. (0,-1) B. (0,7/3) C. (0,5) D. (0,3) E. None of the above
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Functions Math Algebra

04/12/16

Find any holes of the function
f(x)=      8        - --------             x-6   A. There are no holes B. x=6 C. x=4/3 D. x=-4/3 E. x=-6 F. None of the above
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Functions Math Algebra

04/12/16

Find the hoes (if any) for the function
R(x)=   x-5         ----------        x^2-4x-5   A. x=5 B. x=4, x=-1 C. x=-1 D. There are no holes E. x=-5 F. None of the above
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04/09/16

Find an explicit equation for P(x) in terms of x, the number of cupcakes she sells.
A baker sells cupcakes for $3 each. Her revenue, in dollars, is modeled by the function R(x)=3x, where x is the number of cupcakes sold. Her costs can be modeled by the function... more
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04/08/16

A rock was thrown and reached a maximum height after 2 seconds. What is the value of the leading coefficient, a?
A rock was thrown from the top of a building that is 192 feet tall. It reached its maximum height of 256 feet 2 seconds after it was thrown. For any function that gives the height, in feet, of a... more
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Functions

04/05/16

What are three examples of functions?
Give at least three examples of functions from A to B, where neither A nor B is in a set of numbers. 
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Functions

04/05/16

Given f(x)=3x-5, find f(x-2)
Dealing with linear functions. Substitute the x value into the function. May include solving for a quadratic function. there is a given equation and something to find.
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Functions

04/04/16

f(x) = (x-2) / (x+1)
Evaluate f(x) + 1    Hi, I need help with this problem. The step where you plug it into the x's , it becomes one huge complex fraction and that's where I don't know how to solve. 
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