The quadratic function f(x)= a(x-h) to the 2nd power + k is in standard form.

Question

^{(A). The graph of f is a parabola with vertex (x, y) = ( )}

(B). If a > 0, the graph of f opens upward or downward? In this case f(h) = k is the maximum or minimum value of f?

(C). If a<0, the graph of f opens upward or downward? In this case f(h)=k is the value maximum or minimum of f ?

Answer 1

^{(A). The graph of f is a parabola with vertex (x, y) = (h,k )}

(B). If a > 0, the graph of f opens upward or downward? In this case f(h) = k is the maximum or minimum value of f?

(C). If a<0, the graph of f opens upward or downward? In this case f(h)=k is the value maximum or minimum of f ?