What is the standard form of a quadratic equation
ax2+bx+c
What is the discriminant formula and its use
b2 - 4ac: used to determine the nature of roots
What does a discriminant greater than zero indicate
Two distinct real roots
What does a discriminant equal to zero indicate
One repeated real root
What does a discriminant less than zero indicate
Two complex roots
What is the factorisation method
Writing a quadratic as a product of two binomials
What is the quadratic formula
-b±√b2-4ac / 2a
What is the axis of symmetry of a parabola
x = -b/2a
What is the vertex of a parabola
The point where the parabola changes direction maximum or minimum
Using the quadratic formula, if a is positive the vertex is the minimum point, and if it’s negative the vertex is the maximum point.
