Question

*Will medal and fan!* If f(x) = |x + 8|, find f(–11).

A. –3
B. 3
C. –19
D. 19

Answer 1

B.

Answer 2

wherever you see an x, replace it with -11

so

f(x) = |x + 8|

f(-11) = |-11 + 8| ... replace ALL copies of x with -11

f(-11) = ???

Answer 3

-11+8= -3

|-3| = 3

Answer 4

Substitute X with -11
(B)

Answer 5

i think the answer is b because of absolute value it has to be positive and 19 isnt right

Answer 6

Thanks Jim, I got it now.

Answer 7

you're welcome, I'm glad it's clicking