Question

Read the image attached below

Answer 1

4 and 8

Explanation:

(a)

f(0) for x = 0 , that is the interval x < 5, thus

f(0) = x + 4 = 0 + 4 = 4

(b)

f(6) for x = 6 , that is the interval 5 ≤ x < 7, thus

f(6) = 8