Find f (g (-4)) and g (f (-4)) using the functions below.

f (x) = 2x + 7

g (x) = x2 + 3x - 1

Question

Mathematics

Alice Harmon

5 March, 21:20

Find f (g (-4)) and g (f (-4)) using the functions below.

f (x) = 2x + 7

g (x) = x2 + 3x - 1

+2

Answers (1)

Know the Answer?

Gregory Hess · Answer 1

f (g (-4)) = 13.

g (f (-4)) = - 3.

Step-by-step explanation:

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

= 3.

so f (g (-4))

= f (3)

= 2 (3) + 7

= 13.

f (-4) = 2 (-4) + 7

= - 1.

so g (f (-4))

= g (-1)

= (-1) ^2 - 3 - 1

= - 3.

Find f (g (-4)) and g (f (-4)) using the functions below.f (x) = 2x + 7g (x) = x2 + 3x - 1

Find f (g (-4)) and g (f (-4)) using the functions below.

f (x) = 2x + 7

g (x) = x2 + 3x - 1