Question

If f(x)={x+4 if x≤−2

-x if x>−2,
what is f(−4)?

A. -2
B. 4
C. -4
D. 0

Answer 1

Since -4 is less than or equal to -2, we use the first part of the definition of f(x) which is f(x) = x + 4 if x ≤ -2. Therefore,

f(-4) = (-4) + 4 = 0.

So, the answer is D. 0.