This document discusses parabolas in the form of y=ax^2+bx+c and describes how changing the values of a, b, and c affects the graph of the parabola. It provides 4 examples of parabolas with different values of a, showing how a positive or negative a value determines whether the parabola opens up or down and how the h and k values of the vertex formula (h, k) determine the location and orientation of the parabola.

1. 5.2 parabola trans.notebook October 26, 2012
Basic Parabola y = x2
a = positive a = negative
y = a(x ­ h)2 + k
vertex ( , )
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2. 5.2 parabola trans.notebook October 26, 2012
y = ­(x + 2)2 + 5
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3. 5.2 parabola trans.notebook October 26, 2012
y = 2(x + 1)2 ­ 6
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4. 5.2 parabola trans.notebook October 26, 2012
y + 2 = (x + 3)2
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