Saturday, September 30, 2006

TMP question #6a

I know we've done these types of problems in class before but I wasn't sure if I was remembering how to solve them correctly. Since the graph of 2x^2-4x=o is a parabola would the value of k have to equal the vertex of that parabola in order for it to have only one solution?

1 Comments:

Blogger Casey Blue said...

In order for the equation to have one solution, the discriminant (b^2-4ac) must equal zero. So figure out what a, b, and c would be (I think c ends up being -k). Then you can solve for k.

12:30 PM  

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