If f (x) = 2x+8 and g (x) = x^4, what is (g°f) (-3) ?

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Mathematics

Guest

26 April, 18:56

If f (x) = 2x+8 and g (x) = x^4, what is (g°f) (-3) ?

+4

Answers (2)

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Morgan Wang · Answer 1

G (f (x)) = (2x+8) ^4=>g (f (-3)) = (2 (-3) + 8) ^4 = (-6+8) ^4 = (+2) ^4=16

Gregory · Answer 2

To answer this question, first you need to find the (g°f) function. It will be found by inserting the f (x) into g (x). It should be:

g (x) = x^4

(g°f) (x) = (2x+8) ^4

(g°f) (-3) = (2*-3+8) ^4

(g°f) (-3) = (8-6) ^4 = 2^4 = 16