Question

If f(x) = |x + 7| find f(-12).

Answer 1

f( `x`) = | `x` + 7|
f( `-12`) = | `-12` + 7|

Answer 2

You still have to finish it. What does |-12 + 7| equal?

Answer 3

-5

Answer 4

Do you know what || symbols mean?

Answer 5

|-12 + 7| = |-5| = ?

Answer 6

yeh abslute value

Answer 7

Okay, so what does absolute value mean to you?

Answer 8

then it will be positive 5

Answer 9

Yes, because absolute value is synonymous with distance. And distance cannot be negative.

Answer 10

So |-12 + 7| = |-5| = 5

Answer 11

thank you for your help