
Quadratic Functions
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered

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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many zeros does this parabola have?
3
2
0
1
Tags
CCSS.HSF-IF.C.7A
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The height of a water balloon that is launched into the air is given by h(t) = -5x2+20x+25. When will the balloon explode on the ground?
5 seconds
1 second
2 seconds
3 seconds
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If a toy rocket is launched vertically upward from ground level with an initial velocity of 128 feet per second, then its height h after t seconds is given by the equation
h(t) = -16t2 +128t
When will the object reach its maximum height?
4 ft
0 seconds
0 ft
4 seconds
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What are the green dots called?
axis of symmetry
vertex
parabola
roots or x-intercepts
Tags
CCSS.HSF-IF.C.7A
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What should you do first to solve this equation using quadratic formula?
x2 + 6x - 13 = 3
Get factored form
Write down: a=1, b=6, c=-13
Make it equal 0 by subtracting 3 on each side
Type it all in a calculator.
Tags
CCSS.HSA-REI.B.4B
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Does this function have a maximum or minimum?
maximum
minimum
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Does the equation open up or down?
Y = -3x2 +7x - 2
up
down
Neither; it opens to the right.
Neither; it opens to the left.
Tags
CCSS.HSF-IF.C.7A
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