Maths
posted by Kon on .
It is given a quadratic function y=a(xh)62+k.If its graph is a parabola with x=2 as its axis of symmetry,and it passes through the two points(3,7)and(4,11)
(a)what isthe value of the constant h?
(b)find the values of the constants a and k,and write down the quadratic function.

If its axis of symmetry is x=2, then h=2
7 = a + k
11 = 4a + k
3a = 4
a = 4/3
k = 17/3
y = 4/3(x2)^2 + 17/3