# what is coordinate of the vertex of the parabola defined by function f(x)=-9^2 5x 9

*label*Mathematics

*timer*Asked: May 7th, 2015

**Question description**

what is coordinate of the vertex of the parabola defined by function f(x)=-9^2+5x+9

Anonymous

what is coordinate of the vertex of the parabola defined by function f(x)=-9^2+5x+9

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