The equation f (x) = 2(x-3)^2 + 5 and g(x) = -2(x-3)^2 +5 had the same vertex. How can you tell from the equation whaether the vertex is a maximum or a minimum?

What is the average rate of change for this function for the interval from x=2 to x=4 ?

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1

Find the equation of the ellipse with the following properties. the ellipse with foci at (0, 6) and (0, -6); y-intercepts (0, 8) and (0, -8).edit: the answer is x^2 over 28 + y^2 over 64 = 1