Question

Which number line represents the solutions to 1-2x] = 4?

+ +
+
-10 -8 -6 -4 -2 0 2 4
+ +

8 10
6
+
-10 -8 -6 -4 -2 0 2 4 6
+
8
10
+
+
-10 -8 -6 -4 -2 0 2 4 6 8
=>
10
A+
+ + + + + +
-10 -8 -6 -4 -2 0 2 4 6 8 10

Answer 1

The answer is -2 and 2.

Explanation:

You have to solve the modulus :

`| - 2x| = 4`

`- 2x = ±4`

`- 2x = 4`

`x = - 2`

`- 2x = - 4`

`x = 2`