flash cards as you review the powerpoint, think about what comes next
TRANSCRIPT
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Flash CardsAs you review the PowerPoint, think about what comes next.
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Perimeter
add up all the sides
add
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Area
use the formulas multiply
Parallelogram Rectangle (Square)
Triangle
A bh 2A s
1
2A bh
These formulas are NOT given to you on the test!!
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Volume
use the formula
multiply
V lwh
This formula is NOT given to you on the test!!
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Slope
rise
run
y mx b
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Positive Slope
the line goes up
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Negative Slope
the line goes down
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Parallel Lines
have the same …
SlopeSlopeSlopeSlopeSlopeSlopeSlopeSlopeSlopeSlope
y mx b
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y x
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y x
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2y x
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2y x
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Nope, this is y = +xNope, this is y = ??Nope, this is y = +x2
3y xUse what you now about lines and parabolas.
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3y x
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Mean
average
Add up all the numbers and divide by the # of numbers
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Median
middle
Put the numbers in order, then find the middle number.
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Mode
most
Find the number that appears the most.
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Reciprocal
flip
DOES NOT CHANGE THE SIGN!
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Opposite
change the sign.
The opposite of a positive is negative
The opposite of a negative is positive
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% percent
convert to decimal and multiply
move the decimal 2 places to the left
What is 25% of 60?(0.25)(60) = 15
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Scientific Notation
positive # is a big #
##.# 10negative # is a small #
must be greater than or equal to 1 and SMALLER than 10
move decimal to the RIGHT
move decimal to the LEFT
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Square Root symbol
What # times itself equals the inside?
25 5 100 10
85
between 3 and 412 between 9 and 10
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Absolute Value symbol
makes the number positive
NEVER negative
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x
when solving, there will be 2 answers
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Equations or Inequalities
Plug it in, plug it in…
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Positive correlation (relationship)
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Negative correlation (relationship)
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No correlation (relationship)
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Probability
write as a fraction
What you wantTotal
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Sum addition
Difference subtraction
Product multiplication
Quotient division
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2 2 2a b c Pythagorean Theorem
Tells us the lengths of the sides
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3, 4, 5Whenever you see a RIGHT
triangle, think these numbers.
2 2 2a b c
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3, ?, 5Whenever you see a RIGHT
triangle, think these numbers.
2 2 2a b c
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3, 4, ?Whenever you see a RIGHT
triangle, think these numbers.
2 2 2a b c
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?, 4, 5Whenever you see a RIGHT
triangle, think these numbers.
2 2 2a b c
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3, 4, 5?, 8, 109, 12, ?
12, ?, 20..., ..., ...
Whenever you see a RIGHT triangle, think these numbers.
Whenever you see a RIGHT triangle, think these numbers.
Whenever you see a RIGHT triangle, think these numbers.
Whenever you see a RIGHT triangle, think these numbers.
6, 8, 109, 12, 15
12, 16, 202 2 2a b c
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5, 12, 13Whenever you see a RIGHT
triangle, think these numbers.
2 2 2a b c
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5, 12, ?Whenever you see a RIGHT
triangle, think these numbers.
2 2 2a b c
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?, 12, 13Whenever you see a RIGHT
triangle, think these numbers.
2 2 2a b c
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5, ?, 13Whenever you see a RIGHT
triangle, think these numbers.
2 2 2a b c
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5, 12, 1310, ? , 2615, 36, ?..., ..., ...
Whenever you see a RIGHT triangle, think these numbers.
Whenever you see a RIGHT triangle, think these numbers.
Whenever you see a RIGHT triangle, think these numbers.
10, 24 , 2615, 36, 39
2 2 2a b c
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8, 15, 17Whenever you see a RIGHT
triangle, think these numbers.
2 2 2a b c
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8, 15, ?Whenever you see a RIGHT
triangle, think these numbers.
2 2 2a b c
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?, 15, 17Whenever you see a RIGHT
triangle, think these numbers.
2 2 2a b c
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8, ?, 17Whenever you see a RIGHT
triangle, think these numbers.
2 2 2a b c
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8, 15, 1716, ? , 34..., ..., ...
Whenever you see a RIGHT triangle, think these numbers.
Whenever you see a RIGHT triangle, think these numbers.
16, 30 , 34
2 2 2a b c
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Reflectionthink mirrorWhere is the mirror?
y-axis
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Reflectionthink mirrorWhere is the mirror?x-axis
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Congruent
Same ShapeSame Size
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Triangle interior angles add to
Online Demo
180
60 90 30 180 70 80 30 180