1,744 Answered Questions for the topic Functions

Functions

11/03/15

What is the increasing/decreasing interval, max/min, rate of change etc of these functions?
Hi, can someone please help me with this :    For f(x)=-2x+3 , what is the type of variation, rate of change, increasing and decreasing interval , where is it positive and negative, and what is... more
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Functions Log

11/01/15

Write as a single logarithmic function: ln(x^2-4) - ln(x+2) + 2ln(x)
Can you show the steps of how you get this answer... Thank you.
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10/30/15

How do find the roots for these functions?
A) f(x)=x^3+6x^2-7x   B) g(x)= 2x^3-250      
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Functions Negative Exponents

10/29/15

If f(x)=(8-3x)/18, find f^-1(x)
I don't remember how to work problems with negative exponents
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10/28/15

I have to write a function for this problem and I'm completely lost.
Alan's camping troop is selling popcorn to earn money for an upcoming camping trip. Each camper starts with a credit of $25 towards their sales, and each box of popcorn sells for $3.75. I have to... more
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Functions

10/26/15

Find f(3), when f(x)= 4x-2
Find the function
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Functions

10/26/15

Given the function f(x)=3x+6, find each value. A. x if f(x)=12 B. f(x) if x=10 C. x if f(x)=6 D. f(x) if x=5
Find the values 
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10/22/15

A student is running a 10-kilometer race. He runs 1 kilometer every 4 minutes. Select the function that describes his distance.
I need help this is functions in algebra 
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Functions

10/22/15

f(n)= n-1. Find when n= -3 and n = 2. Find n when f(n) = 10
Find the indicated values for the following functions
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10/20/15

Find the domain of the function and express it in interval notation.
ƒ(x)= 1 / √4x2 - 7x + 3   (^^^ That's a square root symbol ^^^)   Have tried many times with no correct answers so far   Please help ASAP!   Thanks :)
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10/20/15

Find and simplify the difference quotient
Find and simplify the difference quotient: f(x+h) - f(x) / h, where h cannot = 0, for the function: f(x)= 3x2 - x +2   Have tried this multiple times and still get the same answer which is not... more
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10/20/15

Find and simplify: f(-x) - f(x) for the given function of f
f(x)= 5x^3 + 6x^2 - 3x - 17   I have tried this problem many times and cannot seem to get the correct answer.   Please help!   Thanks!
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10/19/15

Evaluate the function at the given values of the independent variable and simplify.
f(x)= (3x)/(11*lxl)   (That's the absolute value of x)   f(r^8)   I don't understand how you get the answers after plugging in r^8 in the equation
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10/19/15

Fuctions, Interval, Increasing/ Decreasing, Concave up/ Concave Down (Using Calculus)
Consider the function f(x)=3x+6/6x+3                                                For this function there are two important intervals: (−∞,A) and (A,∞) where the function is not defined at... more
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Functions

10/17/15

Graphing functions on graph help :(
Hi,  I'm so lost with this. I need help graphing the functions.    This is is the graph with the functions http://i781.photobucket.com/albums/yy93/alexandra2719/image.jpg1_zpsjmkuif2s.jpg
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Functions

10/17/15

Range, domain and general standard form equation.
Hi I need help with these questions    During a friendly football game, Jose kicked a 16-m field field goal. The ball reached a maximum height of 4 m. a) Determine the standard and general form... more
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10/15/15

What are the rules for these functions?
Function 1: (0,1) (1,3) (2,9) (3,27), (4,81) Function 2; (0,1) (1,0.5) (2,0.25) (3,0.125) (4, 0.0625) Function 3: (0,-2) (1,-1) (2,2) (3,7)
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10/15/15

What is the rule for this function?
(0,0) (1,3) (3,27) (4,48) 
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10/08/15

Difference Quotient problem with understanding completely: f(x)=1/x^2
f(x)=1/x^2 In utilizing the difference quotient to solve this problem, how would I solve it? Please list in steps as well.  Thank you in advance.
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Functions Math

10/08/15

Which function rule relates the number of field goals, f, and the number of points, p?
In football, a field goal is worth 3 points. Which function rule relates the number of field goals, f, and the number of points, p? A) f=3p B) p=3f C) 3+f D) p=3+f I think it's A. Am I right?
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Functions

10/07/15

Given f(x) = 3x, evaluate f(x - 4)? I don't know what to do.
 In a course online. No physical teacher to teach me so what do I do? Answer?
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10/07/15

Functions word problem
Christina owns a few fruit trees in her backyard and sells the fruit when it's ready. If her peach tree produces "p" pounds of fruit a day at a cost of f(p), what do the following expressions... more
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Functions

10/06/15

f(x)=2x^2-4x+2, g(x)=x-1
i have no idea what to do, i need to find the domain of this
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Functions

09/29/15

periodicity of functions
f(x)={x}  {x}=x-[x] Find the periodicity of the functions :  f(x)={ax} and f(x)=a{x}
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Functions

09/26/15

Are f and g the same function? Why or why not?
Consider the functions f(x)= (x*x)-1/x+1 and g(x)=x-1.
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