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10.1 10.2

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10.1 10.2

1. 1.  y = ax2 a > 1, verticalstretch 0 < a < 1, verticalshrink a < -1, verticalstretch with areflection over thex-axis -1< a < 0, verticalshrink with areflection over thex-axis y = (x - h)2 + k VERTEX FORM h > 0, moves thegraph h space to theright h < 0, moves thegraph h spaces tothe left k > 0, moves thegraph k space up k < 0, moves thegraph k space down
2. 2.
3. 3.  The y-coordinateof the vertex isthe minimumvalue of thefunction if a > 0 The y-coordinateof the vertex, isthe maximumvalue of thefunction if a < 0
4. 4.  Find the vertex Find the axis of symmetry Decide whether it opens up or down Find one point on the parabola Find another point using the axis ofsymmetry and your point
5. 5.  Complete handout. Pages 638-639 #1-35 odd