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

The functions f and g are defined by:

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

## Answer This Question

## Related Questions

- Math. Need help - 1.if g=5 and k=1, evaluate 9+gk a. 13 b. 14 c. 15 d. 16 2....
- math - Suppose that the functions f and g are defined for all real numbers x as ...
- math - i need some serious help with limits in pre-calc. here are a few ...
- Math-Functions - How would i solve this problem? f(x)= -2(x+1)^2+3. Evaluate f(-...
- Trig problems - Part 1) Evaluate tan 7.5 Part 2) Evaluate exactly cos (-(45pi(4...
- Math-Functions - Evaluate, where f(x)=(x-4)^2-1 when f(a-5) How would i solve ...
- Inverse Functions & Trig. Equations - 7. Evaluate sin[sin^-1(-1/2)]. a. 1/2 b...
- FACS - Reading Assignment Help! - 7. Explain - Why is it important to evaluate ...
- math - Could someone check these questions for me? Please? My answers are under ...
- exponents math - evaluate (-1)^3= evaluate -1^3= evaluate (-1)^2= evaluate -1^2=

More Related Questions