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