Thanks, that was pretty simple

Find two quadratic functions f and g such that$\displaystyle f (1) = 0, g(1) = 0 $ and $\displaystyle f (0) = 10, g(0) = 10 $ and both have a maximum value of 18.

So if $\displaystyle f(x) = ax^2 + bx + c $ then $\displaystyle c= 10 $ for both f and g.

I also got $\displaystyle 0=a+b+10 $ for both f and g

what do I do from here?