Absolute ValueDistance from zero on a number line

Absolute Value

5 = 5

The absolute value of 5 is 5

-5 = 5

The absolute value of -5 is 5

Absolute Value

The distanceaway from zero

0-2-4 2 4

-4 = 4 2 = 24 steps to 0

2 steps to 0

Find the absolute value key on the HP 39G

Absolute Value

ABS

Simplify: 2-7

Absolute Value

Simplify: 7-2

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Simplify: - 7-2

Absolute Value

Simplify: (2-7)2

Simplify: -(2-7)2

Simplify: - -(2-7)2

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Put your calculator in scientific mode

Absolute Value

Simplify:

(3.2 x 107) – (4.8 x 108)

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Put your calculator in standard mode

Absolute Value

Simplify:

(6.2 x 10-8) – (7.8 x 109)

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Solve:x = 4

Absolute Value

What numbers work for x?

4 = 4 or -4 = 4

x could = 4

or

x could = -4

Solve:x + 2 = 4

Absolute Value

What numbers work for x?

x + 2 could = 4

or

x + 2 could = -4

x + 2 = 4 - 2 -2 x = 2

or

x + 2 = -4 -2 -2 x = -6

2-6

Always check your answers

x + 4 > 6

Absolute Value

x + 4 > 6 x + 4 could be bigger than 6

x + 4 < - 6 x + 4 could be less than -6

x + 4 > 6 -4 -4

x > 2

x + 4 < - 6 -4 -4

x < -10

0-2-4 42 6-6-8 8-10

Absolute Value

0-2-4 42 6-6-8 8-10

x + 4 < 6

x + 4 < 6 x + 4 could be less than 6

x + 4 > -6 x + 4 could be bigger than -6

-6 < x + 4 < 6 that means x + 4 could be between -6 and 6

-6 < x + 4 < 6 -4 - 4 -4-10 < x < 2

“Nothing yet. How about you Newton?”