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14 Cards in this Set

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Slope
m, rise/run, constant rate of change, difference of y-coordinates divided by the difference of the x-coordinates
y = mx + b
Slope-Intercept Form
Ax + By = C
Standard Form
the m in y = mx + b
the slope
the b in y = mx + b
the y-intercept
y - y1 = m(x - x1)

(y minus y-sub 1 = m(x minus x-sub1)
Point Slope Form
Slope of a Vertical Line
Undefined
Slope of a Horizontal Line
Zero
Equation for a vertical line
x = x-intercept

such as x=5 is the vertical line through the point (5,0)
Equation for a horizontal line
y = b

such as y=3 is the horizontal line through the y-intercept of 3 which is the point (0,3)
Relation
a set of ordered pairs

such as {(3, 4), (2, -1), (5, 8)}
Function
a relation (set of ordered pairs) where the x-coordinate produces only one y-coordinate (x's don't repeat!)

{(3, 4), (2, -1), (5, 8)} function
{(3, 4), (2, -1), (3, 5)} is not a function because the x-coordinate of 3 produced two y-coordinates.
Domain
the input value, the x-coordinate
Range
the output value, the y-coordinate