I really have no idea how to do either of those, any help would be very much appreciated. I made the graphs myself so sorry if they're a bit sloppy.

1. ) Write one possible equation for the given polynomial functions.

http://i.imgur.com/sm2h4.png

2.) Write the equation for each parabola in the form f(x)=a(x-h)^2+k

http://i.imgur.com/b4y6N.png