algebra 2

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13 Terms

1
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Vertex form

y = a(x - h)² + k

2
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Standard form

y = ax² + bx + c

3
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Intercept form

y = a(x - p)(x - q)

4
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finding inverse

1) switch x and y

2) solve for y

5
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Standard AOS

(-b) / (2a)

6
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vertex form vertex

(h , k)

7
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Vertex form A

plug in a point w/vertex

8
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intercept form AOS

(p + q) / 2 = AOS

9
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Intercept form A

plug point in w/x-intercepts

10
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(f -+*/ g)(#) ORRR f(#) -+*/ g(#)

1) plug the # into x for both equations

2) do f -+*/ g

11
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(f -+*/ g)(x)

1) put the original equations in the format

2) simplify

12
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quadratic vs linear

linear : 1st differences r the same

quadratic : 2nd differences r the same

13
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the x-intercepts are aka what?

roots