Question

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

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

Answer 1

Opt. B

Explanation:

The key feature is to eval x in a point where |x| is zero, since the vertex of the function is located at that point.

|x|=0 means that y=-4.

Hence the vertex of this point is located at (0,-4)

4 Units down if we compare with the parent function y=|x|