1.8 The Quadratic Formula Flashcards
1
Q
To solve a general quadratic equation use..?
A
ax^2 + bx + c = 0
2
Q
What is the quadratic formula?
A
-b /-+/ (sqrt b^2 - 4ac)/ 2a
3
Q
What is the discriminant?
A
(sqrt) b^2 - 4ac
4
Q
If the discriminant is greater than zero..?
A
The equation has two real roots.
5
Q
If the discriminant is less than zero..?
A
The equation has no real roots.
6
Q
If the discriminant is equal to zero..?
A
The equation has one repeated root.
