Focus of Parabola

Focus of Parabola

12th Grade

15 Qs

quiz-placeholder

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Focus of Parabola

Focus of Parabola

Assessment

Quiz

Mathematics

12th Grade

Hard

Created by

Anthony Clark

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Upwards

Downwards

To the right

To the left

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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