Every quadratic equation has a U-shaped graph called this.
What is parabola?
Graph the equation. Must include vertex, and at least one point on each side. y=(x-5)(x-1)
What is graph on board?
Name the vertex: y= (x+1)^2 - 8
What is (-1, -8)?
5x^2 + x - 1 = 0
What is standard form?
Name the x-intercepts. y=(x + 5) (x - 3)
What is (-5,0) and (3,0)?
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 "a" value?
Name the x-intercepts y=(x+4)(x)
What is (-4,0) and (0,0)?
Name the vertex y = x2 - 4x - 5
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= x2
What is (0,0)?
Name the vertex 2x2 + 4x - 6 = 0?
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