The First 50: Quadratics

Quad Eqn:3 pts

This program finds the equation of a quadratic (in the form y=ax²+bx+c) from three points. The three points must be given in the form (x,y) including the brackets.
Additional information is given with the equation:

Factorise

This program will factorise a quadratic which is in the form ax²+bx+c. For example: factorise 2x²+3x-6
The coefficients A, B and C must be entered one by one:
Changing the C coefficient to -8 gives:
Changing the C coefficient to +10 gives:

Turning pt etc

Given a quadratic in the form ax2+bx+c, this program will give the turning point and the x and y intercepts.