Vocabulary
Every quadratic equation has a U-shaped graph called this.
What is parabola?
x^2 - 3x + 1 = 0
What is standard form?
What is the value of x at a y-intercept?
What is zero?
Name the vertex y= (x-3)^2 +4
What is (3,4)?
The name given to highest or lowest point on a parabola.
What is the vertex?
DAILY DOUBLE!!
Name the x-intercepts:
y=(x)(x-2)
What is (0,0) and (2,0)?
Name the vertex y= (x+1)^2 - 8
What is (-1, -8)?
When a quadratic equation is written in this form
y = ax^2 +bx + c
What is the standard form?
5x^2 + x - 1 = 0
What is standard form?
Name the y-intercept:
y=x^2 - 4
What is (0,-4)?
Name the vertex
y=(x+3)^2
What is (0,-3)?
This value determines if the parabola will open up or down.
What is a?
DAILY DOUBLE!!
y = 2(x-1)(x+7)
What is intercept form?
DAILY DOUBLE!!!
Name the x-intercepts:
y=(x+2)(x - 2)
What is (-2,0) and (2,0)?
Name the vertex:
(hint: find AOS)
x^2 - 4x - 5 = 0
What is (2,-9)?
The line that runs through the vertex and divides the parabola in half.
What is axis of symmetry?
y = - 1/2 (x + 7) - 4
What is vertex form?
Name the y-intercept. y= (x-1)^2 + 1
What is (0,2)?
Name the vertex 2x^2 + 4x - 6 = 0?
What is (-1,-8)?