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Slope-intercept form (equation)
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Y = mx + b
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Point-slope form (equation)
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Y - y1 = m (x - x1)
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Distance formula (distance between two points)
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D = √
(x2 - x1)2 + (y2 - y1)2
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Midpoint formula (midpoint of line segment between two points)
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M = [(x1 + x2)/2, (y1 + y2)/2)
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Quadratic formula
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X = -b + - √b2 - 4ac/2a
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Pythagorean theorem
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A2 + b2 = c2
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Area of triangle
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A = 1/2 bh
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Area of parallelogram
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A = bh
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Area of rectangle
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A = lw
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Area of rhombus
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A = 1/2 (d1 x d2)
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Diagonal of square
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S v/---2
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Area of trapezoid
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A = 1/2 h(b1 x b2)
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Area of circle
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A = nr2
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Area of sector
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A = (n / 360) ( nr2)
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Circumference of circle
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C = nd
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