- #1
schlynn
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Homework Statement
I need to know how to complete the square, I need to know how to do this to get
(this is to find the vertex of the quadratic function and the x intercept(s)
f(x)=aX2+bX+c to f(x)=a(x-h)2+k
It would be helpfull to see walkthroughs for when a=1 and when "a" does not equal 1.
questions:
-3x2+9x+(1/4)
and
x2-6x-2
Homework Equations
I don't think there's any, just that to get y set x=0 and to get x set y=0, for the intersepts that is.
h=horizontal shift in the graph
k=verticle shift in the graph
there is this shortcut too...
f(x)=a(x-h)2+k
and the vertex will be
((-b/2a),c-(b2/4a))
The Attempt at a Solution
Well, I'm learning this all out of school, and the book doesn't really explain how to do this very well, so I have no idea what do to. Could someone make walkthroughs on how to solve both of the question? This will help me tremendusly as I have been stuck on what to do now.