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January 31, 2015

January 31, 2015

Posted by **Bri** on Sunday, March 20, 2011 at 7:06pm.

1. y=-xsquared+9

2. y=-2xsquared=7x-21

- algebra (parabolas) -
**Ana**, Sunday, March 20, 2011 at 11:11pmto find the axis of symmetry you must use the formula x=-b/2a which in (1. a=1 b=0 c=9)

1.x=-b/2a = o/1(2) 0/2 =0 your axis of symmetry would be 0 and to find out if it goes upward or downward you must plug in more numbers to get more cordinates

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