Vocabulary
Axis of Symmetry/Vertex
Domain and Range
Quadratic Function
100
The shape of a quadratic function is called this
What is a Parabola?
100
What is the vertex for the following graph?
(1, 2)
100
What is the domain of every quadratic function?
all real numbers or (-infinity, +infinity)
100
Is the following a quadratic function? Explain why.
f(x) = x3 + x2 -8x
No, because there is x3
200
The line that cuts a parabola in half
What is the axis of symmetry?
200
What is the vertex for the following graph?
(-3, -1)
200
Identify the range of the function.
y greater than or = to 4
or [4 , infinity)
200
Is the following a quadratic function? Explain why.
f(x) = 2x - 4x2
Yes, because the highest exponent is 2.
300
The highest or lowest point of a quadratic function.
What is a vertex?
300
What is the axis of symmetry for the following graph?
x = 5
300
Identify the range of the function.
y is less than or equal to 1
or (-infinity, 1]
300
Evaluate the function below for f(-3).
f(x) = -2x^2+3x+10
f(-3) = 8
400
What type of function has a highest power of 2?
A quadratic function
400
What is the axis of symmetry for the following graph?
x = 2
400
If the vertex of a quadratic function is located at (4, -3) and the range is y greater than or equal to -3, is the graph opening up or down?
up
400
What is the difference between a quadratic function and a linear function?
A quadratic function is a u shape while a linear function is a straight line.
500
What are two other names for the x-intercepts on a quadratic function?
roots
zeroes
500
If you know the vertex of a parabola, you also know the what?
axis of symmetry and min or max
500
If a quadratic function is opening down and the vertex is located at (-2, -9), what is the range of the function?
y is less than or equal to -9
or
(-infinity, -9]
500
What is the standard form of a quadratic function?
f(x) = ax2 + bx + c