Discriminant - 1.3 Flashcards
1
Q
what is the discriminant
A
b^2 - 4ac
2
Q
what does the discriminant show
A
how many solutions there are given a quadratic equation
3
Q
what does a positive value for the discriminant show?
A
two distinct real number solutions
4
Q
what does a negative value for the discriminate show?
A
none of the solutions are real numbers
5
Q
what is a real number
A
a number that we know of including irrational ones
6
Q
what does a zero value of the discriminant show?
A
there is a repeated real number solution
