Circle Equation Skills
Authored by Sayra Madrid
Mathematics
11th Grade
Used 1+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the center of a circle with equation (x-3)^2 + (y+4)^2 = 25?
(3, 4)
(3, -1)
(0, -4)
(3, -4)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calculate the radius of a circle with equation (x+2)^2 + (y-1)^2 = 36.
6
10
8
4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Write the standard form equation of a circle with center at (-1,5) and radius 7.
(x + 1)^2 + (y + 5)^2 = 49
(x - 1)^2 + (y - 5)^2 = 7
(x + 1)^2 + (y - 5)^2 = 49
(x - 1)^2 + (y + 5)^2 = 49
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the radius of a circle affect the equation in standard form?
The radius affects the equation by determining the value of r^2 in the standard form equation of a circle.
The radius affects the equation by determining the value of pi in the standard form equation of a circle.
The radius affects the equation by determining the value of the diameter in the standard form equation of a circle.
The radius affects the equation by determining the value of the circumference in the standard form equation of a circle.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Graph the circle with equation (x-1)^2 + (y+3)^2 = 16 on the coordinate axes.
The circle is centered at (2, -2) with a radius of 3.
The circle is centered at (0, 0) with a radius of 5.
The circle with equation (x-1)^2 + (y+3)^2 = 16 is centered at (1, -3) with a radius of 4.
The circle is centered at (-1, 3) with a radius of 6.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Identify the center of the circle given the equation (x+5)^2 + (y-2)^2 = 49.
(5, -2)
(0, 0)
(-5, 2)
(3, 4)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the radius of a circle is 10, what is the equation in standard form if the center is at (3,-4)?
(x - 3)^2 + (y - 4)^2 = 100
(x - 3)^2 + (y + 4)^2 = 10
(x - 3)^2 + (y + 4)^2 = 100
(x + 3)^2 + (y - 4)^2 = 100
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