Equations of Circles
Authored by Debra Bernal
Mathematics
8th Grade
CCSS covered
Used 23+ times
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for an equation of a circle?
Tags
CCSS.HSG.GPE.A.1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Let (x, y) represent a point on a circle centered at the origin.
Determine the equation of the circle and justify your reasoning.
The equation of the circle is (x + y)2 = r2 because the curvature of the circle is formed by a quadratic relationship.
The equation of the circle is x2 + y2 = r2 because the Pythagorean Theorem can be used to describe all points equidistant from the origin with a radius of r.
The equation of the circle is x + y = r because the radius of the circle is always equal to the sum of the x and y coordinates.
The equation of the circle is x2 + y2 = r because the distance formula can be used to determine all points equidistant from the origin with a radius of r.
Tags
CCSS.HSG.GPE.A.1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Point B is located on circle A, as shown below.
Determine the equation of circle A.
Tags
CCSS.HSG.GPE.A.1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determine the equation for the graphed circle.
Tags
CCSS.HSG.GPE.A.1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determine the equation of the given circle.
Tags
CCSS.HSG.GPE.A.1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determine the equation of the circle.
Tags
CCSS.HSG.GPE.A.1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When graphed, circle C has a diameter with endpoints on the circle at points A and B .
Which is the correct equation for circle C ?
Tags
CCSS.HSG.GPE.A.1
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