1.2 Quadratics Flashcards
1
Q
quadratic formula
A
-b+-root(b^2 - 4ac)
______________
2a
2
Q
ax^2 + bx + c = 0
complete the square
A
a(x^2+bx/a) +c
a((x+b/2a)^2-(b/2a)^2)+c
a(x+b)^2+(c-b^2/4a)
3
Q
Set of possible INPUTS?
A
domain
4
Q
set of possible OUTPUTS?
A
range
5
Q
turning point of a quadratic graph using complete the square
A
a(x+p)^2 +q
turning point at (-p,q)
6
Q
What is the discriminant
A
b^2 - 4ac
7
Q
b^2 - 4ac > 0
A
two distinct real roots
8
Q
b^2 - 4ac = 0
A
one repeated root
9
Q
b^2 - 4ac < 0
A
no real roots
