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19 Cards in this Set
- Front
- Back
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natural numbers
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1 2 3 4 5
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whole numbers
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0 1 2 3
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integers
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-2 -1 0 1 2
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rational numbers
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1/4 5/1 3/-2
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irrational numbers
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pi square root of 2
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real numbers
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rational & irrational
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distance formula
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d= (squar root) ( x2-x1)squared + (y2-y1)squared
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midpoint formula
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x1+x2 / 2
y1+y2 / 2 |
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relation
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set of ordered pairs (x,y)
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function
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set of ordered pairs (x,y) such that for every x there is only one y
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interval notation
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brackets = number included
parenthesis = number not included |
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slope
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rise over run
y2-y1 ------ x2-x1 |
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zero of a function
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f(x) = 0
0= 3x + 4 |
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slope intercept
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y=mx+b
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zero
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0/2 = 0
2/0 = undefined |
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point slope form
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y-y1 = m(x-x1)
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parallel lines
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same slope
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perpendicular lines
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m2 = -1/m1
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direct proportions
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y = kx ; k = proportionality constant
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