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Feb19-12, 07:31 PM
A quadratic equation has the form y = ax^2 + bx + c.
What you're showing is a quadratic function. A quadratic equation in standard form looks like this:
+ bx + c = 0
However, if c = 0, then y = ax^2 + bx. Is it still called a quadratic equation?
+ bx = 0 is still a quadratic equation. The only restriction is that a [itex]\neq[/itex] 0.
And if b = 0 so that y = ax^2, is it still given the title of quadratic equation?
I would guess yes since it still has a power of 2 and is a parabola. Is this correct?