Question

Which number line represents the solutions to |x + 4| = 2?

A number line from negative 7 to 7 in increments of 1. Two points, one at negative 6 and one at negative 2.
A number line from negative 7 to 7 in increments of 1. Two points, one at 2 and one at 4.
A number line from negative 7 to 7 in increments of 1. Two points, one at 2 and one at 6.
A number line from negative 7 to 7 in increments of 1. Two points, one at negative 4 and one at negative 2.

Answer 1

Solve |x + 4| = 2.

x + 4 = 2 → x = -2
x + 4 = -2 → x = -6

So the solution points are x = -6 and x = -2 — the first number line.