Question

Assume f(x) = -2x + 8 and g(x) = 3x. What is the value of (g o f)(3)

Answer 1

6

Explanation:

(g o f)(3) = g(f(3))

We can find f(3) using its formula with x=3:

f(3) = -2·3 +8 = -6 +8 = 2

Now, we can find g(2) using its formula with x=2:

g(2) = 3·2 = 6

So, the composition value is ...

(g o f)(3) = 6