Absolute Value

Front

What is the definition of absolute value?

Back

The distance of a number from zero.

Front

Solve for x: |5x| = 40

Back

x = 8 and x = -8

Front

Evaluate: |x + 9| = -5

Back

No solution

Front

Solve the equation: |−2n| - 30 = −20

Back

n = 5 or n = -5

Front

Solve for x: -4|x + 5| + 2 = -126

Back

x = 27 or x = -37

Front

What does |x| represent?

Back

The absolute value of x, which is always non-negative.

Front

If |a| = b, what can we conclude about a?

Back

a = b or a = -b.

Front

What is the absolute value of -10?

Back

10

Front

Is |x| ever negative?

Back

No, absolute value is always non-negative.

Front

Solve for x: |x - 3| = 4

Back

x = 7 or x = -1