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Absolute Value
Distance 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 distance
away from zero
-4 = 4
2 =2
4 steps to 0
-4
-2
2 steps to 0
0
2
4
Absolute Value
Find the absolute value
key on the HP 39G
ABS
Absolute Value
Simplify:
2-7
Calculator Emulator
Simplify:
7-2
Simplify: - 7-2
Absolute Value
Simplify:
(2-7)2
Simplify:
-(2-7)2
Simplify: - -(2-7)2
Calculator Emulator
Absolute Value
Put your
calculator in
scientific mode
Simplify:
(3.2 x 107) – (4.8 x 108)
Calculator Emulator
Absolute Value
Put your
calculator in
standard mode
Simplify:
(6.2 x 10-8) – (7.8 x 109)
Calculator Emulator
Absolute Value
Solve:
x =4
What numbers
work for x?
4 = 4 or -4 = 4
x could = 4
or
x could = -4
Absolute Value
Solve:
-6
x2 + 2 = 4
x + 2 could = 4
or
x + 2 could = -4
Always
check your
answers
What numbers
work for x?
x+2 =4
- 2 -2
x =2
or
x + 2 = -4
-2
-2
x = -6
Absolute Value
-10
-8
-6
-4
-2
0
2
x+4 >6
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
4
6
8
Absolute Value
-10
-8
-6
-4
-2
0
2
4
6
8
x+4 <6
x+4 <6
x + 4 could be less than 6
x + 4 > -6
-6 < x + 4 < 6
x + 4 could be bigger than -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?”
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