2 - Quadratics Flashcards
1
Q
What is the quadratic formula
A
(-b±√b² - 4ac )/ 2a
2
Q
What is the form quadratics are written in
A
ax²+bx+c
3
Q
How do you complete the square
A
a(x + (b/2a)^2 - (b^2 /4a) + c
4
Q
What is the set of possible inputs of a function called
A
a domain
5
Q
What is the set of possible outputs of a function called
A
The range
6
Q
What is the discriminant
A
what is contains in the root of the quadratic equation
b² - 4ac
7
Q
How many roots does the equation have when the discriminant > 0
A
2 distinct real root
8
Q
How many roots does the equation have when the discriminant = 0
A
1 repeating real root
9
Q
A
10
Q
How many roots does the equation have when the discriminant < 0
A
No real roots
