Question

Given the functions f(x) = 2x2 +5 and g(x) = 8+x find go f(-5)

A. 63
B.3.
C.2
D.23

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Answer 1

A. 63

Explanation:

Given functions:

f(x) = 2x² + 5

g(x) = 8 + x

find:

g o f(-5)

Solution:

Start first by finding f(-5);

f(x) = 2x² + 5

= 2(-5)² + 5

= 50 + 5

= 55

Now

g o f(-5);

g(55) = 8 + 55 = 63