46.2k views
0 votes
Given the definitions of f(x) and g(x) below, find the value of (g*f)(-1)

f(x)=3x^2-2x+1
g(x)=4x+4

1 Answer

4 votes

Final answer:

To find the value of (g*f)(-1), first calculate f(-1), which is 6, and then use this value to calculate g(6), resulting in 28.

Step-by-step explanation:

The question asks us to find the value of the composition of two functions, (g*f)(x), evaluated at x = -1. Given f(x) = 3x^2 - 2x + 1 and g(x) = 4x + 4, the composite function (g*f)(x) means g(f(x)).

To find this, we first evaluate f(-1):
f(-1) = 3(-1)^2 - 2(-1) + 1 = 3 + 2 + 1 = 6.

Now we use this result to evaluate g(f(-1)) which is g(6):
g(6) = 4(6) + 4 = 24 + 4 = 28.

Therefore, the value of (g*f)(-1) is 28.

User Rszaman
by
9.2k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories