SAT Math Formulas

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Math

SAT

Math

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12th

Last updated 2:54 PM on 7/21/25
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31 Terms

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slope of a line

• mm = slope
• (x1,y1)(x_1,y_1) = coordinates of the first point in the line
• (x2,y2)(x_2, y_2) = coordinates of the second point in the line

<p>• $$m$$ = slope<br>• $$(x_1,y_1)$$ = coordinates of the first point in the line<br>• $$(x_2, y_2)$$ = coordinates of the second point in the line</p>
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slope-intercept form (equation of the line)

• mm = slope
• bb = y-intercept

<p>• $$m$$ = slope<br>• $$b$$ = y-intercept</p>
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point-slope form

• mm = slope
• (x1,y1)(x_1, y_1) = any point on the line

<p>• $$m$$ = slope<br>• $$(x_1, y_1)$$ = any point on the line</p>
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midpoint (middle point between two points)

• (xm,ym)(x_m,y_m) = coordinates of the midpoint
• (x1,y1)(x_1,y_1) = coordinates of the first point
• (x2,y2)(x_2,y_2) = coordinates of the second point

<p>• $$(x_m,y_m)$$ = coordinates of the midpoint<br>• $$(x_1,y_1)$$ = coordinates of the first point<br>• $$(x_2,y_2)$$ = coordinates of the second point</p>
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