Quadratic Equations and Functions Flashcards
1
Q
What is the standard form of a quadratic equation?
A
y = ax2 + bx + c
2
Q
What is a quadratic equation?
A
a second-degree equation
3
Q
What is the vertex form of a quadratic equation?
A
y = a(x – h)2 + k
(h, k) is the vertex
4
Q
What is the intercept form of a quadratic equation?
A
factored form of standard form; set factors equal to 0 to find x-intercepts (a.k.a. roots or zeros)
y = a(x - r1)(x - r2)
a = GCF
r1 = first root
r2 = second root
5
Q
How do you shift a function up or down?
A
add or subtract
whole side
6
Q
How do you shift a function right or left?
A
subtract or down
(just x inside parentheses)
7
Q
How do you reflect over the x-axis?
A
opposite
-(whole side)
