Posted by Jimmycan someone please help on Tuesday, December 18, 2012 at 4:50pm.
Determine the quadratic function f, whose graph is given. **The graph given is (0,2) and (3,11)
The vertex is (3,11) and the yintercept is 2
So, f(x)=
**Please help me understand how to do this question. Could you please show work?**

calculus  Steve, Tuesday, December 18, 2012 at 6:20pm
come on, guy. You should be getting the hang of these by now.
the vertex says
f(x) = a(x3)^2 + 11
the point (0,2) says
2 = 9a+11
a = 13/9
f(x) = 13/9 (x3)^2 + 11
would have been nicer with a yintercept of +2.
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