Algebra

find the vertex, line of symmetry, and minimum or maxium values of the quadratic equation
f(x)=9-x^2

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  1. F(x) = Y = -X^2 + 9.

    h = Xv = -b/2a = 0/-2 = 0.

    k = Yv = 0^2 + 9 = 9.

    V(h,k) = (0,9).

    The max. value is at the vertex and is equal to 9.

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  2. The line of symmetry = h = 0.

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