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10 Cards in this Set

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  • Back
Slope Formula
y2 - y1 / x2 - x1
The Slope-Intercept Form is ...
y = mx + b
The Standard Form is....
Ax + By = C
The Point-slope Form is...
y - y1 = m ( x - x1)
To find y-intercept, you...
where line crosses y-axis
replace 0 for x, solve for y
To find x-intercept, you...
where line crosses x-axis
replace 0 for y, solve for x
when is m = 0 ?
Horizontal line
0 is the numerator
when is m = undefined?
Vertical line
0 is in the denominator
What are the slopes of parallel lines have?
m = m
They are equal
What are the slopes of perpendicular lines?
opposite AND reciprocal