Question

If f(x) = 8 – 3|x + 2|, find f(–6)

20
–16
–4
4

Answer 1

again, just plug in the numbers:

\[f(x) = 8 - 3|x+2|\]\[f(-6) = 8-3|-6+2| = 8 - 3|-4| = \]
What is \(|-4|\)?

Answer 2

4?

Answer 3

Right. So replace the \(|-4|\) with \(4\) and complete the arithmetic. What do you get?

Answer 4

\[f(-6) = 8 -3(4) = \]

Answer 5

16?

Answer 6

\[f(-6) = 8 - 3*4 = \]

Answer 7

You do multiplication and division before addition and subtraction, so that is

\[f(-6) = 8 - (3*4) = 8 - 12 = \]

Answer 8

so -4?

Answer 9

if 8-12 = -4, then that would be the correct answer. Does 8-12 = -4?

Answer 10

yes :D

Answer 11

Good!