Write a quadratic function in vertex form whose graph that has the given characteristics:
a.) vertex at (0,0), passing through the point (6, -9)
The answer is: y= -1/4x^2 But I am not sure how the variable (x^2) fits in there...
I've gotten this far but I believe I am going in the wrong direction...
b.) vertex (0, -6), passing through the point (3, 21)
If you could help me with these, I would greatly appreciate it. Thank you so much!!