Absolute Value Equations and Extraneous Solutions

Front

Why is absolute value always written as a positive?

Back

Absolute value is talking about distance, distance is always measured by positive numbers.

Front

Order the numbers from least to greatest: -2, I8I, 5, I-10I, 6

Back

-2, 5, 6, 8, 10

Front

|x-3|=40

Back

x = 43, x = -37

Front

|x+7|=12

Back

x = 5, x = -19

Front

|-2 - 4n| = 34

Back

n = -9, n = 8

Front

|2a - 10| = 6

Back

a = 8, a = 2

Front

8|-2x + 4| = 96

Back

x = -4, x = 8

Front

An absolute value equation is

Back

an equation that contains an absolute value expression

Front

| 2x - 1 | = -4

Back

No Solution

Front

| 3x - 6 | - 9 = -3

Back

x = 0 and x = 4