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January 28, 2015

January 28, 2015

Posted by **Jenn** on Tuesday, March 19, 2013 at 11:05am.

The vertex is (-3,-13) and the y-intercept is -4

f(x)=

- Quadratic function -
**Steve**, Tuesday, March 19, 2013 at 11:09amf(x) = a(x+3)^2 - 13

since f(0) = -4,

-4 = 9a-13

a = 1

f(x) = (x+3)^2 - 13

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