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section 4.48 HOIIJiEVVoRK
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ing to Vertex fo1TTI and sketch the grapn
; 1. Y=x'+2x-1
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2. Y=x' - Bx+IB
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3. y :::: -x 2 + 4x - 3
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rtex form an d sketch the graph
--=---a. y == zxz +8x +7
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Change each of the following to ve_
7. y=3x 2 - 12x + l
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9. y = - x 2 + 4x - 3
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10. y = 2x 2 + 12X + 15
~~1(X +~)1+ 3
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11. Wri e th equation (vertex form) for each of the following graphs.
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