Hi
Using the vertex form of a parabola,
where(h,k) is the vertex
maximum is (2,8) and the start of the parabola is (0,6) ?
Standard form is
, where the focus is (h,k + p)
y = a(x-2)^2 +8 |Using point (0,6) to solve for a
6 = a*4 + 8
-2 = 4a
-1/2 = a
y = -.5(x-2)^2 +8 OR -2(y-8) = (x-2)^2
