Question

Find the value of g(x)=2-x^2 and f(x)=2x-1 . f(-4)

Answer 1

f(-4) = 2(-4) - 1

f(-4) = -8 - 1

f(-4) = -9

g(-9) = 2 - (-9)^2

g(-9) = 2 - 81

g(-9) = -79

Best of Luck!

Answer 2

f(-4) = -9

Explanation:

f(x)=2x-1

Let x = -4

f(-4)=2*-4-1

= -8 -1

= -9