Monday

October 20, 2014

October 20, 2014

Posted by **Keisha** on Wednesday, September 9, 2009 at 11:46am.

f:x 3x-2

g:x 2x+5

Evaluate:g(-6), fg(3)

g(-6)= 2(-6)+5= -7

fg(3)= 3(2x+5)-2

6x+15-2

6(3)+13 = 31

Evaluate f(x)=8, calculate the value of x

- math (how do i solve the last part) -
**drwls**, Wednesday, September 9, 2009 at 12:01pmYour "last part" is to determine the value of x when

f(x) = 3x -2 = 8

Just solve that last equation for x.

The answer is

x = 10/3

**Answer this Question**

**Related Questions**

math. can someone do this for me please.... - * Consider the functions f(x)=1/x...

Reiny and steve do this for me please - 1. Consider the functions f(x)=1/(x)+4 ...

Math-Functions - How would i solve this problem? f(x)= -2(x+1)^2+3. Evaluate f(-...

Math-Functions - Evaluate, where f(x)=(x-4)^2-1 when f(a-5) How would i solve ...

functions - For each problem, construct two composite functions, . Evaluate each...

math - the functions f and g are defined as follows f(x)=5x-1 and g(x)=-4x^2-3 f...

math - For my class you have to choose from several different scenarios, make ...

Math - Use your knowledge of exponents to solve. a) 1/2^x=1/(x+2) b) 1/2^x>1/...

Lee - For my class you have to choose from several different scenarios, make up ...

algebra functions - can someone help me with this and explain it to me step by ...