Absolute Value.

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Presentation transcript:

Absolute Value

Definition: The distance a number is from zero on a number line

The symbol for absolute value is two vertical lines The symbol for absolute value is two vertical lines. It looks like this I I. Treat the vertical lines as if they are parenthesis and solve everything in them before moving on to any other part of the expression. The symbol for absolute value is two vertical lines. It looks like this I I. Treat the vertical lines as if they are parenthesis and solve everything in them before moving on to any other part of the expression.

You would read I - 3 I as “ the absolute value of negative three is……” To determine the value of I -3 I ask yourself, “ how many places from 0 is - 3 ? ”

What is the value of point A? Examples of Problems… What is the value of point A? Which point has the greatest absolute value? What is the absolute value of point A? Which point has the least absolute value? A B C D

Examples of Problems…

3

Examples of Problems…

10

Examples of Problems…

9

Examples of Problems…

3 + 11 = 14

Examples of Problems…

1

Examples of Problems…

1 * 7 = 7

Examples of Problems…

12 - 3 + 13= 22

Examples of Problems…

-6