Question

Given f(x) = -x - 3, find f(-6)

Answer 1

f(-6) = 6 - 3 = 3

so f(-6) = 3

Explanation:

1). if x = -6 then f(x) looks like f(-6) = -x - 3

2).since -6 is a negative and so is -x it becomes a positive

f(-6) = 6 -3

3). subtract as usual

f(-6) = 3

Answer 2

f(-6) = 3

Explanation:

Simply plug in -6 as x

f(-6) = -(-6) - 3

f(-6) = 6 - 3

f(-6) = 3