Vocabulary
Every quadratic equation has a U-shaped graph called this.
What is parabola?
x2 - 3x + 1 = 0
What is standard form?
Name the x-intercepts: y = 2(x-2)(x+6)
What are (2,0) and (-6,0)?
Name the vertex: y = (x-3)2 +4
What is (3,4)?
Graph the equation. Must include vertex, and at least one point on each side. y = (x-5)(x-1)
What is graph on board?
y = 2 (x - 5)² + 6
What is Vertex form?
Name the x-intercepts: y = x(x-2)
What are (0,0) and (2,0)?
Name the vertex: y = (x+1)2 - 8
What is (-1, -8)?
Graph the equation. Must include vertex, and at least one point on each side. y = (x+2)(x-2)
What is graph on board?
5x2 + x - 1 = 0
What is standard form?
Name the x-intercepts: y=x2 - 4
What are (-2,0) and (2,0)?
Name the vertex: y = (x+4)(x-4)
What is (0,-16)?
Graph the equation. Must include vertex, and at least one point on each side. y = (x+1)2 - 2
What is graph on board
This is the number before the x^2 that determines whether a parabola opens up or down.
What is the leading coefficient?
Name the x-intercepts: y = x2 - x - 2
What is (-1,0) and (2,0)?
Name the vertex: y = x2 - 4x - 5 = 0
What is (2,-9)?
Graph the equation. Must include vertex, and at least one point on each side. y = (x-4)2 + 3
What is graph on board.
The line that runs through the vertex and divides the parabola in half.
What is axis of symmetry?
y = -1/2 (x + 7)2 - 4
What is vertex form?
Name the x-intercepts: y = (x-1)2 + 1
What are None?
Name the vertex: y = 2x2 + 4x - 6?
What is (-1,-8)?
Graph the equation. Must include vertex, and at least one point on each side. y = -x2 -6x + 1
What is graph on board