Reality Check - Intro to Absolute Value

Front

What is absolute value?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. It is always a non-negative value.

Front

Evaluate: |-26|

Back

26

Front

Evaluate: |–12| – |8|

Back

4

Front

What is the absolute value of 0?

Back

The absolute value of 0 is 0, since it is at the origin on the number line.

Front

What does the graph of an absolute value function look like?

Back

The graph of an absolute value function forms a 'V' shape, with the vertex being the point where the function changes direction.

Front

What is the vertex of the function f(x) = |x - 3| + 2?

Back

The vertex is the point (3, 2).

Front

Which equation represents an absolute value function with a vertex of (-5,-7)?

Back

Front

What is the reason that absolute value is always written as a positive?

Back

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

Front

Evaluate: |5| + |-3|

Back

8

Front

If f(x) = |x - 1|, what is f(1)?

Back

0