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September 20, 2014

September 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

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