Circle equations/Circumference/Radius

Circle equations/Circumference/Radius

9th Grade

15 Qs

quiz-placeholder

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Circle equations/Circumference/Radius

Circle equations/Circumference/Radius

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Medium

Created by

Katie Praskovich

Used 2+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the coordinates of the centre and the radius of the circle with equation:
(x - 4)2 + (y - 3)2 = 25 ?

Centre  (4,3)
Radius = 5 units
Centre  (4,3)
Radius = 25 units
Centre  (-4,-3)
Radius = 25 units
Centre  (-4,-3)
Radius = 5 units

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the equation of the circle, with centre (4,2) and radius 5 units?

(x + 4)2 + (y + 2)2 = 25
(x + 4)2 + (y + 2)2 = 5
(x - 4)2 + (y - 2)2 = 5
(x - 4)2 + (y - 2)2 = 25

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the coordinates of the centre and the radius of the circle with equation:
(x + 3)2 + (y + 1)2 = 22 ?

Centre  (-3,-1)
Radius = 4 units
Centre  (3,1)
Radius = 2 units
Centre  (-3,-1)
Radius = 2 units
Centre  (3,1)
Radius = 4 units

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The diameter of a circle has length 12. The center is at (-5, 2). Give the equation of the circle.

(x - 2)+ (y + 5)= 36
(x - 5)2 + (y + 2)2 = 6
(x + 5)+ (y - 2)= 36
(x + 2)+ (y - 5)= 6

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Which graph corresponds to 
(x)2+ (y-6)2=9

A
B
C
D

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

What is the correct equation of the given circle in general form?

A

B

C

D

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The definition of diameter is

distance from the center of any point on the circle

distance across the circle through the center

distance from one point to another

distance around the circle

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