Quadratic Functions Quiz Help Sites

Graphing:
http://www.purplemath.com/modules/grphquad.htm

http://www.purplemath.com/modules/grphquad2.htm

http://www.purplemath.com/modules/grphquad3.htm


Solving Quadratic Functions & Find the x-intercepts:
http://www.purplemath.com/modules/solvquad.htm

http://www.purplemath.com/modules/quadform.htm

http://www.purplemath.com/modules/solvquad6.htm


Finding the vertex by completing the square:
http://www.purplemath.com/modules/sqrvertx.htm


Other good math sites:
http://www.khanacademy.org/

http://www.ck12.org/