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4 Cards in this Set
- Front
- Back
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The distance between two points is equal to
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sqrt[(x`2 - x`1)^2 + (y`2 - y`1)^2]
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The equation of a circle of radius r and center(h,k) is
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(x-h)^2 + (y-k)^2 = r^2
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To complete the square of x^2 +/- bx, you must
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add (b/2)^2 to both sides
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The midpoint of a line joining two points is
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([(x`1 + x`2)/2] , [(y`1 + y`2)])
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