Sunday

September 21, 2014

September 21, 2014

Posted by **kerri** on Saturday, October 17, 2009 at 6:11pm.

please show the steps..

a)y=-2x^2+6x+11

b)y=-x^2-3x-3

c)y=1.5x^2-9x+10

- math -
**bobpursley**, Saturday, October 17, 2009 at 6:14pmfactor out any coefficent of x

y= -2(x^-3x) + 11

Now, complete the square in the ( )

y=-2(x^2-3x+9/4) + 11 - 9/4

y=-2(x-3/2)^2- 8 3/4

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