Review
Vocabulary
Review Part 2
100
Find the axis of symmetry.
y = x2 + 2x + 1
x=-1
100
What is the fold line in the middle of the parabola?
The axis of symmetry
100
Which function is quadratic?
A. y + 3= x2 + 2x
B. y + x = 4x
C. x=5
A. y + 3= x2 + 2x
200
Find the axis of symmetry.
y = -2x2+ x + 6
x= 1/4
200
What do you call the point that is in the middle of a parabola?
The vertex
200
What is the vertex?
y = -3x2 + 3
(0,3)
300
Find the vertex.
y = 1/3x2 + 6x + 3
(-9,-24)
300
What is the quadratic formula?
x=(-b+-sqrtb^2-4ac )/(2a)
300
Find the vertex
y =x2+2x+3
(-1,2)
400
Find the y- intercept.
y = 3x2 + 2x + 5
(0,5)
400
What is the formula for the axis of symmetry?
y = -b/2a
400
Find the x-intercepts.
y= 2x2+3x-5
x=-1
x=-5/2
500
Create your table of values for the equation.
y = -x2 - 4x - 4
x y
-4 -4
-3 -1
-2 0
-1 -1
0 -4
500
How do we find the x-intercepts?
By factoring or Quadratic formula
500
Graph: y=2x2+4x+1
