Whose good at Quadratic Functions. Plz plz plz message me now

Question

mertsj · Answer

We all are.

jack1 · Answer

whats the question Denzel?

anonymous · Answer

Are you smart with quadratics?

jack1 · Answer

dunno, depends on the question?
post away and if I cant there's bound to be someone online who is

anonymous · Answer

Write the quadratic function in standard form.
f(x) = -
1
2
(x - 
1
3
 )2 + 
2
5

jack1 · Answer

umm... sorry could u write that again...?

jack1 · Answer

copy- paste doesnt always come out right on this, just type it in normally, use ^ for powers, we'll get what you mean

anonymous · Answer

Could you call mee?

jack1 · Answer

ok, hazarding a guess, your equation was:
f(x) = 12(x-13)^2 +25   ?

jack1 · Answer

call you... from australia, are you kidding?

jack1 · Answer

so the standard form of the equation is:
$$y = ax ^{2} + bx + c$$

jack1 · Answer

so first multiply out the brackets:
(x-13)^2
=(x-13)(x-13)
user FOIL to solve (first outer inner last)
= x^2 -13x -13x +169

jack1 · Answer

f(x) = 12(x^2 -13x -13x +169) +25   
so the above is now your equation, can you multiply it out from here?