Quadratics Flashcards
1
Q
What is the discriminant?
A
b²-4ac. It tells us the number and types of solutions in a quadratic equation.
2
Q
If the discriminant > 0, describe the solution set.
A
2 real
3
Q
If the discriminant = 0, describe the solution set.
A
1 real (multiplicity of 2)
4
Q
If the discriminant < 0, describe the solution set.
A
2 imaginary (conjugates of eachother)
5
Q
What is the sum of the zeros equal to?
A
-b/a
6
Q
What is the product of the zeros equal to?
A
c/a
