A curve with equation y = ax^2 + bx + c crossed the x-axis at (-4,0) and (0,0) and also passes through the point (2,120). Where does the curve cross the y-axis?

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- March 20th 2009, 02:21 AMstruckFunctions and graphs question..
A curve with equation y = ax^2 + bx + c crossed the x-axis at (-4,0) and (0,0) and also passes through the point (2,120). Where does the curve cross the y-axis?

- March 20th 2009, 02:25 AMProve It
- March 20th 2009, 02:55 AMstruck
I knew that and I posted the question wrong :( .. It should have been (0,9) not (0,0) . It just didn't appear to me that the equation should be made of type a(x - s)(x - r) (or similar) .. I solved it though :)

Thanks for the reply. - March 20th 2009, 05:06 AMstapel