Use the functions f(x) = 4x² + 3 and g(x) = 3x + 2 to evaluate the following.
2 answers:
Answer:
Step-by-step explanation:
f(-2)= 4(-2)^2 + 3 = 4(4) + 3 = 16 + 3 = 19
g(19) = 3(19) + 2 = 57 + 2 = 59
g(-2)= 3(-2) + 2 = -6 + 2 = -4
f(-4)= 4(-4)^2 + 3 = 64 + 3 = 67
Answer:
- 58
- 67
Step-by-step explanation:
f(x) = 4x² + 3
g(x) = 3x + 2
1. g (f(-2)) =
f(-2) = 4(-2)² + 3
= 4(4) + 3 = 19
g(f(-2)) = g(19) = 3(19) + 1 = 57 + 1 = 58
2. f(g(-2)) =
g(-2) = 3(-2) + 2
= -6 + 2 = -4
f(g(-2)) = f(-4) = 4 (-4)² + 3 = 4(16) + 3 = 64 + 3 = 67
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