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Determining equations of quadratic functions
steffimalcampo91
Jun 22, 2007, 09:41 PM
Find the vertex, the y-intercept and the x-intercept(s).
1. y= -3x^2-3x
2. y= 2x^2-6x+3
galactus
Jun 23, 2007, 04:33 AM
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.