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Quadratic Vocabulary
Name that Form
Crossing the Line
Quadratic Features
Circles
100
Every quadratic equation has a U-shaped graph called this.
What is parabola?
100
x^2 - 3x + 1 = 0
What is standard form?
100
Name the x-intercepts. y=2(x-2)(x+6)
What is (2,0) and (-6,0)?
100
Name the axis of symmetry and the vertex. y= (x-3)^2 +4
What is AoS: x = 3 and vertex = (3,4)?
100
State the center and radius of the circle: (x - 4)^2 + (y - 3)^2 = 9
What is C(4, 3) and radius=3
200
The highest or lowest point on a parabola.
What is the vertex?
200
y = 2 (x - 5)² + 6
What is Vertex form?
200
Name the x-intercepts Y=(x)(x-2)
What is (0,0) and (2,0)?
200
Name the axis of symmetry and the vertex. y= (x+1)^2 - 8
What is AoS: x = -1 and vertex = (-1, -8)?
200
State the center and radius of the circle: (x + 3)^2 + (y - 5)^2 = 8
What is C(-3, 5) and radius = 2sqrt(2)?
300
When a quadratic equation is written in this form y = ax^2 +bx + c
What is the standard form?
300
5x^2 + x - 1 = 0
What is standard form?
300
Name the x-intercepts. y=x^2 - 4
What is (-2,0) and (2,0)?
300
Name the axis of symmetry and the vertex. y=(x+4)(x-4)
What is AoS: x = 0 and vertex = (0,-16)?
300
State the center and radius of the circle. (Hint: complete the square!) x^2 - 2x + y^2 - 4y - 4 = 0
What is C(1, 2) and radius = 3?
400
This is the number before the x^2 that determines whether a parabola opens up or down.
What is the leading coefficient?
400
y = 2(x-1)(x+7)
What is intercept form?
400
Name the x-intercepts y=x^2 - x - 2
What is (-1,0) and (2,0)?
400
Name the axis of symmetry and the vertex. x^2 - 4x - 5 = 0
What is AoS: x = 2 and vertex = (2,-9)?
400
State the center and radius of the circle. (Hint: complete the square!) x^2 - 6x +y^2 + 8y - 3 = 0
What is C(3, -4) and radius = 2sqrt(7)?
500
The line that runs through the vertex and divides the parabola in half.
What is axis of symmetry?
500
y = - 1/2 (x + 7) - 4
What is vertex form?
500
Name the x-intercepts. y= (x-1)^2 + 1
What is None?
500
Name the axis of symmetry and the vertex. 2x^2 + 4x - 6 = 0?
What is AoS: x = -1 and vertex = (-1,-8)?
500
State the center and radius of the circle. (Hint: complete the square!) 2x^2 - 8x + 2y^2 + 12y + 14 = 0
What is C(2, -3) and radius = sqrt(6)