Quadratics

Question 1

Domain

Answer 1

Set of possible inputs of a function

Question 2

Range

Answer 2

Set of possible outputs of a function

Question 3

Complete the square x^2 + bx + c

Answer 3

(x+b/2)^2 + c - (b/2)^2

Question 4

If f(x) = a(x+p)^2 + q

Answer 4

Turning ppointat (-p, q)

Question 5

Discriminant

Answer 5

b^2-4ac
b^2-4ac < 0 (no real roots)
b^2-4ac = 0 (repeated roots)
b^2-4ac > 0 (two distinct root)