oh my god i'm gonna pass the sat so hard

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Last updated 2:29 PM on 9/3/26
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7 Terms

1
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ax² + bx + c = 0

standard form of a quadratic equation

2
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y = a(x - h)² + k

vertex form of a quadratic equation

3
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h = -b/2a

x-coord of the vertex of a quadratic equation when given part of the standard form

4
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h = (x1 + x2)/2

x-coord of the vertex of a quadratic equation when x-coords of two solutions are known

5
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x1 + x2 = -b/a

shortcut to use whenever asked for the sum of two solutions to a quadratic equation

6
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x1 * x2 = c/a

shortcut to use whenever asked for the product of two solutions to a quadratic equation

7
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(x - h)² + (y - k)² = r²

formula for a circle