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Identifying Center and Radius from Circle Equations

Identifying Center and Radius from Circle Equations

Assessment

Interactive Video

Mathematics

6th - 10th Grade

Practice Problem

Hard

CCSS
HSG.GPE.A.1

Standards-aligned

Created by

Mia Campbell

FREE Resource

Standards-aligned

CCSS.HSG.GPE.A.1

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the standard form of a circle's equation?

h^2 + k^2 = r^2

x - h^2 + y - k^2 = r^2

x - h^2 + y - k^2 = r

x^2 + y^2 = r^2

Tags

CCSS.HSG.GPE.A.1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the equation of a circle, what do the h and k represent?

Center coordinates

Area and perimeter

Radius and diameter

Diameter and circumference

Tags

CCSS.HSG.GPE.A.1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If an equation has a '+5' for the y term, what is the y-coordinate of the center?

Cannot be determined

0

-5

5

Tags

CCSS.HSG.GPE.A.1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you correctly write the center point from the equation of a circle?

Divide h and k by 2

Multiply h and k by 2

Use the opposite signs of h and k values

Directly use the h and k values

Tags

CCSS.HSG.GPE.A.1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you find the radius from the circle's equation?

Multiply h and k

Square root of r^2

Add h and k

Square root of r

Tags

CCSS.HSG.GPE.A.1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the equation of a circle is x - 1^2 + y + 5^2 = 49, what is the center?

(1, 5)

(-1, 5)

(1, -5)

(-1, -5)

Tags

CCSS.HSG.GPE.A.1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the 'r' in the circle's equation stand for?

Area

Diameter

Circumference

Radius

Tags

CCSS.HSG.GPE.A.1

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