Vocabulary
Functions
Graphs
Linear, Exponential, or Quadratic?
100
The point on the graph where the function intersects the y-axis
Y-intercept
100
Is the function below a quadratic function?
p(x) = 150(3)x + 3x - 250
No
100
The two quadratic functions, f(x) = x2 and g(x) = 2x2 + 3, are shown in the graph. Which parabola is g(x)?
g(x) = 2x2 + 3 is the blue parabola with a vertex of (0,3)
100
Does the graph represent a linear, an exponential, or a quadratic function?
Linear
200
The U-shaped graph of a quadratic function
Parabola
200
Does the quadratic function y = x2 + 4x - 5 have a minimum or maximum value?
Minimum value
200
What is the vertex of this quadratic function?
(1, -3)
200
Does the graph represent a linear, an exponential, or a quadratic function?
Quadratic
300
The point(s) on the graph where a quadratic function intersects the x-axis
*Bonus 50 points for each synonym*
X-intercepts, zeros, roots, and solutions
300
Name one similarity and one difference between the graphs of the functions f(x) = x2 and g(x) = -4x2.
Similarities: Both form parabolas. Both have a vertex of (0,0) and an axis of symmetry of x = 0. etc.
Difference: f(x) has a minimum. g(x) has a maximum. The parabola of g(x) opens down and is narrower than f(x). The parabola of f(x) opens up and is wider than g(x). etc.
300
What is the axis of symmetry of the quadratic function graphed below?
x = -3
300
Does the data in the table represent a linear, an exponential, or a quadratic function?
Linear
400
The vertical line that divides the graph of a quadratic function into two symmetric parts
Axis of symmetry
400
What is the vertex of the quadratic function
g(x) = -3(x + 2)2 - 4
(-2, -4)
400
What are the zeros of the quadratic function shown in the graph?
1 and 6
400
Does the data in the table represent a linear, an exponential, or a quadratic function?
Exponential
500
The y-coordinate of the vertex of the graph
f(x) = ax2 + bx + c when a < 0
Maximum value
500
What is the vertex of the quadratic function
f(x) = 4x2 + 8x - 1?
(-1, -5)
500
If the quadratic function graphed below is in the form f(x) = ax2 + c, what must be true about a and c?
a is a negative number
c is 6
500
Does the data represent a linear, an exponential, or a quadratic function?
(-2,8), (-1,0), (0,-4), (1,-4), (2,0), (3,8)
Quadratic