determining equations of quadratic functions

Question

Jun 22, 2007, 09:41 PM

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Join Date: May 2007

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determining equations of quadratic functions

Find the vertex, the y-intercept and the x-intercept(s).

1. y= -3x^2-3x
2. y= 2x^2-6x+3

Answers

Jun 23, 2007, 04:33 AM	#2

galactus Mathematics Expert Join Date: Sep 2006 Location: Chaneysville, Pa. Posts: 1,634	The vertex can be found by using $x=\frac{-b}{2a}$ For the y-intercept, set x=0 For the x-intercept, set y=0 and solve the quadratic by factoring, quadratic formula, completing the square, whatever.

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