Quadratic Graphs and Equations Flashcards
1
Q
What is the turning point of y=(x+b)2+c?
A
(-b,c)
2
Q
What is the form of an equation of a line of symmetry?
A
x = Something
3
Q
How do you find an x-coordinate if you know the y-coordinate?
A
Substitute y into the original equation
4
Q
How do you find an y-coordinate if you know the x-coordinate?
A
Substitute x into the original equation
5
Q
What is the discriminant?
A
b2 - 4ac
6
Q
If the discriminant is positive, what is the nature of the roots?
A
b2 - 4ac > 0
2 real, distinct roots
7
Q
If the discriminant is zero, what is the nature of the roots?
A
b2 - 4ac = 0
2 real, equal roots
8
Q
If the discriminant is negative, what is the nature of the roots?
A
b2 - 4ac < 0
No real roots
