The Discriminant
b^2 - 4ac
Discriminant Rules
b^2 - 4ac = 0 Means 1 real root
b^2 - 4ac > 0 Means 2 real roots
b^2 - 4ac < 0 Means no real roots
When a > 0
Smiley Curve
When a < 0
Frowny curve
Last changed2 years ago