Vocabulary
Standard Form
Vertex Form
100
The name of the graph of a quadratic function.
What is a parabola?
100
The standard form of a quadratic function.
What is y=ax^2+bx+c?
100
The vertex form of a quadratic function, where (h,k) are the vertex of the parabola.
What is y=a(x-h)^2+k?
200
The vertical line that cuts the parabola into two mirror images.
What is the axis of symmetry?
200
A stretch by a factor of 2 and the parabola opens down.
What is y=-2x^2?
200
The graph of the parabola opens up, and the vertex is (3, 6).
What is y=a(x-3)^2+6?
300
The lowest or highest point on the parabola.
What is the vertex?
300
A shift 5 units up and the parabola opens up.
What is y=x^2 +5?
300
The vertex of the parabola is (0,0) and the parabola opens down.
What is y=-ax^2?
400
The formula to find the axis of symmetry.
What is x= -b/2a ?
400
A shrink by a factor of 1/4, the parabola opens down and the y-intercept is -3.
What is y=1/4x^2 +bx -3?
400
The vertex of the parabola is (0,-4) and the parabola stretches by a factor of 3 opening downwards.
What is y=-3x^2 -4?
500
The minimum value or maximum value of a quadratic function.
What is the y-coordinate of the vertex?
500
Graph will stretch by a factor of 3, open upwards, shift down 2 units, and the axis of symmetry is x=0.
What is y=3x^2-2?
500
The vertex of the parabola is at (-1,-1) and the parabola shrinks by a factor of 1/2 opening upwards.
What is y=1/2(x+1)^2-1?
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