How to find the equation of a circle - Math
Card 1 of 8
The center of a circle is 
and its radius is 
. Which of the following could be the equation of the circle?
The center of a circle is
Tap to reveal answer
The general equation of a circle is 
, where the center of the circle is 
and the radius is 
.
Thus, we plug the values given into the above equation to get 
.
The general equation of a circle is
Thus, we plug the values given into the above equation to get
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Which one of these equations accurately describes a circle with a center of 
and a radius of 
?
Which one of these equations accurately describes a circle with a center of
Tap to reveal answer
The standard formula for a circle is 
, with 
the center of the circle and 
the radius.
Plug in our given information.
This describes what we are looking for. This equation is not one of the answer choices, however, so subtract 
from both sides.
The standard formula for a circle is
Plug in our given information.
This describes what we are looking for. This equation is not one of the answer choices, however, so subtract
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The center of a circle is and its radius is . Which of the following could be the equation of the circle?
The center of a circle is
Tap to reveal answer
The general equation of a circle is , where the center of the circle is and the radius is .
Thus, we plug the values given into the above equation to get .
The general equation of a circle is
Thus, we plug the values given into the above equation to get
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Which one of these equations accurately describes a circle with a center of and a radius of ?
Which one of these equations accurately describes a circle with a center of
Tap to reveal answer
The standard formula for a circle is , with the center of the circle and the radius.
Plug in our given information.
This describes what we are looking for. This equation is not one of the answer choices, however, so subtract from both sides.
The standard formula for a circle is
Plug in our given information.
This describes what we are looking for. This equation is not one of the answer choices, however, so subtract
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The center of a circle is and its radius is . Which of the following could be the equation of the circle?
The center of a circle is
Tap to reveal answer
The general equation of a circle is , where the center of the circle is and the radius is .
Thus, we plug the values given into the above equation to get .
The general equation of a circle is
Thus, we plug the values given into the above equation to get
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Which one of these equations accurately describes a circle with a center of and a radius of ?
Which one of these equations accurately describes a circle with a center of
Tap to reveal answer
The standard formula for a circle is , with the center of the circle and the radius.
Plug in our given information.
This describes what we are looking for. This equation is not one of the answer choices, however, so subtract from both sides.
The standard formula for a circle is
Plug in our given information.
This describes what we are looking for. This equation is not one of the answer choices, however, so subtract
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The center of a circle is and its radius is . Which of the following could be the equation of the circle?
The center of a circle is
Tap to reveal answer
The general equation of a circle is , where the center of the circle is and the radius is .
Thus, we plug the values given into the above equation to get .
The general equation of a circle is
Thus, we plug the values given into the above equation to get
← Didn't Know|Knew It →
Which one of these equations accurately describes a circle with a center of and a radius of ?
Which one of these equations accurately describes a circle with a center of
Tap to reveal answer
The standard formula for a circle is , with the center of the circle and the radius.
Plug in our given information.
This describes what we are looking for. This equation is not one of the answer choices, however, so subtract from both sides.
The standard formula for a circle is
Plug in our given information.
This describes what we are looking for. This equation is not one of the answer choices, however, so subtract
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