Question

If ƒ(x) =⎡x⎤− 4; find ƒ(-3.2)

Answer 1

f(-3.2) =-.8

Explanation:

f(x) = |x| -4

Let x = -3.2

f(-3.2) = |-3.2| -4

Absolute value means take the positive number

f(-3.2) = 3.2-4

f(-3.2) =-.8