Focus of Parabola
Authored by Anthony Clark
Mathematics
12th Grade
CCSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Upwards
Downwards
To the right
To the left
Tags
CCSS.HSG.GPE.A.2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How does the distance between the focus and directrix affect the width of a parabola?
Increasing the distance makes the parabola wider.
Increasing the distance makes the parabola narrower.
The distance does not affect the width of the parabola.
The width of the parabola is only affected by the orientation of the directrix.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The focus is always inside the parabola.
true
false
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The focus is at (2,0) and the vertex is at (-4,0). What is the equation of the parabola?
y2 = 24(x+4)
(y+4)2 = -12x
x2 = 16(y+4)
(x+4)2 = -20y
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(y-4)2 = -8(x+1)
What are the coordinates for the focus?
(1,4)
(-1,6)
(-1,2)
(-3,4)
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The vertex is halfway between the focus and directrix.
true
false
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