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WorksheetsCOQF
Total questions: 30
Worksheet time: 38mins
What is the orange line called?
Line of Solutions
Roots
Vertex
Axis of Symmetry
The graph of a quadratic function is called a
line
parabola
half oval
vertex form
If the vertex of this graph is (2, -1), what is the axis of symmetry?
x= -1
x = 2
y = -1
x = -2
Which photo represents a quadratic function?
What does the vertex represent?
The object is at its highest point, 64 feet at 2 seconds.
The object is at its highest point, 2 feet at 64 seconds.
The object is at its highest point, 64 in. at 2 hours.
The object is at its highest point, 64 meters at 2 days.
What is the domain of the function?
0 < x < 4
x is all real numbers
0 < y < 4
0 < y < 64
What are the roots of the following quadratic?
x= 0 and x= -4
x= 0 and x= 4
y= 0
x= 2
Which of these quadratic functions is shown in the graph?
y=(x−2)2+1
y=(x+2)2+1
y=(x+2)2−1
y=(x−2)2−1
Which of the following is the graph of a quadratic function?
Select the false statement about the parabola
The vertex is at (-2,-3)
The minimum is -3
The maximum is -3
The y-intercept is -7
Select the false statement about the parabola.
It has 2 zeros
The axis of symmetry is x= - 2
The minimum is -3
It is concave down
What is the vertex?
(2,3)
(0,-1)
(-3,-2)
(-2,-3)
Select the function that has a maximum.
y = -(x+3)2+5
y = x2+5x-7
y = (x-3)2-5
y = (x+3)(x+5)
A quadratic function has vertex of (2,7). What must be true?
the y-intercept is 7
Axis of symmetry is x=2
It has no zeros
it has a maximum of 7
A quadratic function has a minimum of 3 and axis of symmetry of x= - 4. What must be true?
The parabola opens up
the vertex is (-4,3)
the vertex is (3,-4)
The zeros are 3 and -4
Select the zero (x-intercept) of the function.
4
0
2
1
A ball is thrown into the air from the edge of a 48-foot-high cliff so that it eventually lands on the ground. The graph below shows the height, y, of the ball from the ground after x seconds.
For which interval is the ball's height always decreasing?
0≤x≤2.5
0<x<5.5
2.5<x<5.5
x≥2
The height, y, of a ball tossed into the air can be represented by the equation
y = −x2 + 10x + 3, where x is the elapsed time. What is the equation of the axis of symmetry of this parabola?
y = 5
y = -5
x = 5
x = -5
The height of a ball Doreen tossed into the air can be modeled by the function h(x) = −4.9x2 + 6x + 5, where x is the time elapsed in seconds, and h(x) is the height in meters. The number 5 in the function represents
the initial height of the ball
the time at which the ball reaches the ground
the time at which the ball was at its highest point
the maximum height the ball attained when thrown in the air
