Vocabulary
What is the name for a U-shaped graph in the quadratic equation?
Parabola
What does the y-intercept tell us?
Name the x-intercepts of y=x2 +4x-12
(2,0) and (-6,0)?
What is the formula for the vertex?
x=-b/2a
How do we call the highest or lowest point on a parabola.
Vertex
Does the graph of -3x^2+5x+3 have a min or max?
max
Name the x-intercepts. Give points where the parabola is crossing the x-axis. Y=x2 -2x
(0,0) and (2,0)
What does the axis of symmetry do?
Axis of symmetry cuts the quadratic equation in half.
What is the name of the form for this quadratic equation? y = ax^2 +bx + c
Standard form
what is the vertex of the graph at 1/2x2+2x-5
(-2,-7)
Name the x-intercepts. Give points where the parabola is crossing the x-axis. y=x^2 - 4
(-2,0) and (2,0)
What is the axis of symmetry for this quadratic function? y=x2 + 4x + 4
x=-2
When the vertex is in the lowest part of the parabola, what is it called?
The minimum
given the graph x2+2x-5=y, what is f(1)?
f(1)=-2
Name the x-intercepts. Use graphing to find the points where the parabola crosses through the x-axis. y=x2 - x - 2
(-1,0) and (2,0)
What is the axis of symmetry for this quadratic function? y=x2 -6x +9
x=3
How do we call the line that runs through the vertex and divides the parabola in half.
Axis of symmetry
How do you spell your teachers last name?
Nekl
Name the x-intercepts. y= 10x2 - x - 1
(-.27,0) and (.37,0)
What is the axis of symmetry for this quadratic function? x2 -2x+1=y
x = 1