Question

Which of the following describes how to translate the graph y = |x| to obtain the graph of y = |x| - 4?

4 units up
4 units down
4 units left
4 units right

Answer 1

Hint:

y = |x| can be written as f(x) = |x|

So

y = |x| - 4

is the same as

y = f(x) - 4

Answer 2

Oh, so the top one just took the f away?

Answer 3

you mean replaced |x| with f(x)?

Answer 4

yes

Answer 5

yes, so what does f(x) - 4 tell us?

Answer 6

that you subtract the x from the 4
?