Question

Suppose that Y and Z are points on the number line.

If YZ=4 and Y lies at - 12, where could Z be located?

If there is more than one location, separate them with commas.

Answer 1

z = - 16 , - 8

Explanation:

4 units from - 12 is - 16 or - 8 , since

| - 16 - (- 12) | = | - 16 + 12 | = | - 4 | = 4

| - 8 - (- 12) | = | - 8 + 12 | = | 4 | = 4

Answer 2

subtract or add 4 to -12 to find the answer