Vocabulary
Axis of Symmetry
Min/Max and Intercepts
Vertex
Quadratic Function
100
The shape of a quadratic function is called this
What is a Parabola?
100
What is the axis of symmetry for the following graph?
x = 2
100
Does the function below have a min or a max?
f(x) = x2 - 3x + 12
min
100
If you know the vertex of a parabola, you also know the what?
axis of symmetry and min or max
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 axis of symmetry for the following graph?
x = 5
200
Does the function below have a min or a max? And, what is the y-intercept?
f(x) = -7x2 - 3x + 12
max, y-int is 12.
200
What is the vertex for the following graph?
(1, 2)
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 f(x) = x2 + 2x + 1
x = -1
300
What is the minimum for a quadratic function whose vertex is (-4, 13)?
min: 13
300
If the vertex of a quadratic function is (-3, -1) as its minimum point, what are domain and range of that function?
Domain: All real numbers
Range: y> -1
300
What is a quadratic function in standard form?
f(x) = ax2 + bx + c
400
What type of function has a highest power of 2?
A quadratic function
400
What is the axis of symmetry for f(x) = x2 - 8x + 20
x = 4
400
What is the min/max for the following graph?
max= 2
400
What is the vertex for the following quadratic function?
y= (x-3)2 +2
(3, 2)
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
What is the axis of symmetry for f(x) = 2x2 - 12x + 1
x = 3
500
What is the y-intercept of the following graph?
(0, 8)
500
What is the vertex for the function f(x) = x2 + 2x -3
(-1, -4)
500
What is the vertex form of a quadratic function?
y = a(x-h)2 +k