if f(x)=3x-4 and g(x)=x^2 -1 what is f(g(-3))? a) -34 b) 8 c) 20 d) 168

Question

if f(x)=3x-4 and g(x)=x^2 -1
what is f(g(-3))?

a) -34
b) 8
c) 20
d) 168

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Nguyệt Ánh 4 years 2021-08-02T19:49:34+00:00 1 Answers 7 views 0

Answers ( )

  1. minhkhue
    0
    2021-08-02T19:50:52+00:00
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    Answer: C) 20
    Explanation: Subsitute (-3) into the g(x) equation so you get g(-3)= (-3)^2-1= 9-1=8
    Then replace the x as 8 in f(x) and you get 3(8)-4=24-4= 20.

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