Question

If f(x) = 0.8(2 – x), what is the value of f(–2)?



A.
0


B.
1.6


C.
3.2


D.
3.6

Answer 1

3hunna Bang!!!!!!!

Answer 2

what

Answer 3

f(-2) means x= -2
So everywhere you see an X, you plus in -2
So it would be: 0.8[2-(-2)]
Simplify: 0.8(0)
Answer: 0

Answer 4

* plug in

Answer 5

C

Answer 6

f(x) = 0.8(2 - x)
f(x) = 0.8(2 - (-2))
f(x) = 0.8(2 + 2)
f(x) = 0.8(4)
f(x) = 3.2

Answer 7

@WatchDogs

Answer 8

@PikaPaige6 How does [2 - (-2)] = 0?

Answer 9

A negative and a negative = a positive. So it becomes 2 + 2.

Answer 10

Oh oh I see that now. I must have worked it out too fast. Thank you.

Answer 11

If it was [2 - (+2)] it would = 0. But in this case they're both negatives, and it equals 4.

Answer 12

No problem.