Evaluate the following f(x) = x^2 - 6 for f(4)

Just replace the variable "x" with "5":

f(5) = 2×5 + 4 = 14

f(5) = 14

Step-by-step explanation:

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2