Daily Equation #14 - Parabola - y = a*x^2

This is Day 14 of my collection of printable equations. To see the whole collection, go to: http://www.thingiverse.com/thing:227210

Continuing with the polynomials, today is a parabola, y = a*x^2.

Details:
- units are in mm
- Range(x) = -50 to 50
- a = 1/25

As always, I'm going to continue to post one equation per day until get bored or people lose interest. If there's a particular equation you'd like to see, leave a comment and I'll give it a shot.