(8? – 4ac) -6+ V - 4ac -6 10. Find the vertex for y = 4x2 – 8x – 12. Use 2a from the quadratic formula = 4a 2a O -16, –1) O (16, –1) O (1,-16) O (1, 16) O (-1,0)

Q: y%3D2X²-8x+9

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Q: the vertex of y= -2x2-8x-3

A: Rewrite in vertex form and use this form to find the vertex (h,k)

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