Font size
Worksheets8-1 to 8-3 Review Quizizz - Quadratic Functions
Total questions: 24
Worksheet time: 27mins
What is the standard form of a quadratic?
y=mx+b
y=ax2+bx+c
y=a(x−h)2+k
y=(x+a)(x+b)
What is the vertex form of a quadratic?
y=mx+b
y=ax2+bx+c
y=a(x−h)2+k
y=(x+a)(x+b)
If the "a" value of a quadratic is positive, what way will the parabola open?
Up
Down
Left
Right
What direction will this parabola open?
y=−3(x−4)2+2
Up, because of the +2
Down, because of the -3
Left, because of the -4
Right, because of the -4
What represents the maximum or minimum (the highest or the lowest point) of a parabola?
Axis of Symmetry
Y-Intercept
X-Coordinate
Vertex
What is the y-intercept of y=ax2+bx+c
(0,a)
(0,c)
x=2(a)−(b)
Cannot be determined
What is the range of this quadratic function?
y≤3
y≥3
x≤3
All Real Numbers
What is the domain of this quadratic function?
y≤3
y≥3
x≤3
All Real Numbers
Where is the function increasing?
y <3
x<-1
y>3
x>-1
What is the vertex of the function y=4x2 . Write your answer as an ordered pair and do not include any spaces.
(a)
Over what interval does the function y=4x2 increase? Write your answer as an inequality. Do not include any spaces.
(a)
How do you find the axis of symmetry given the standard form of a quadratic equation?
x=h
f(2(a)−(b))
x=2(a)−(b)
(2(a)−(b),f(2(a)−(b)))
What is the vertex of y=−2(x−4)2+1
(-4, -1)
(4, 1)
(8, 1)
(-4, 1)
Which equation represents a parabola that has been shifted
right 2 and up 3?
y=(x−2)2−3
y=(x+2)2−3
y=(x−2)2+3
y=(x+2)2+3
What is the axis of symmetry:
y=−2x2+12x−7
x = 3
x = -2
x = -7
x = 12
The axis of symmetry of the quadratic y=−2x2+12x−7 is x = 3.
What is the vertex?
(3, -7)
(-7, 3)
(11, 3)
(3, 11)
What is the axis of symmetry:
y=−(x+3)2−2
x = -2
x = 2
x = 3
x = -3
What is the vertex:
y=5(x+1)2
(5, 1)
(5, -1)
(-1, 0)
(-1, 5)
What is the equation for the quadratic parent function?
y=ax2+bx+c
y=a(x−h)2+k
y=mx+b
y=x2
How does the width of the quadratic g(x)=−21(x−5)2+3 compare to the parent function?
Wider
Narrower
Same
How does the width of the quadratic g(x)=2x2−20x−53 compare to the parent function?
Wider
Narrower
Same
Convert vertex form to standard form:
y=3(x+1)2−4
y=3x2−1
y=3x2+2x−3
y=9x2+9x+5
y=3x2+6x−1
A soccer ball is kicked. The path of the ball can be modeled by the equation y=−16x2+64x+1 which is also graphed. What is the vertex?
(-64, 1)
x = 2
(2, 65)
65
A soccer ball is kicked. The path of the ball can be modeled by the equation y=−16x2+64x+1 which is also graphed.
Given the vertex is (2, 65) what is the highest the ball will reach?
2 feet
65 feet
It will never stop getting higher
63 feet
