Question

If f(x) = 9 – 4|x + 1|, find f(–5).

Answer 1

plug -5 in for x and solve

Answer 2

the answers are
-15
-7
7
23

Answer 3

do you know what lx+1l is

Answer 4

x = -5

put -5 in for x

9 - 4|-5+1|

9 - 4|-4|

9 - 4|4| <--take absolute value of -4, multiply by -4

9 - 16

= -7

Second option :)