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Compare Standard, Factored, and Vertex Forms
Grade Level
GRE
QR.126 Compare Standard, Factored, and Vertex Forms
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One expanded form is m(x) = 5x
2
+ 70x + 225. Which form supports finding the minimum value without graphing or rewriting the function?
A
Vertex form: m(x) = 5(x + 7)
2
- 20
B
All three displayed forms are equally direct for this feature.
C
Standard form: m(x) = 5x
2
+ 70x + 225
D
Factored form: m(x) = 5(x + 9)(x + 5)
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