Quiz on Circles

In the equation (x-3)²+(y-2)²=16, the center of the circle is...

• (3,2)
• (-3, -2)
• (-2, -3)
• (2, 3)

In the equation (x-4)²+(y-3)²=25, the radius is

• 4
• 3
• 5
• 25

In the equation (x-4)²+(x-3)²=25, the center of the circle is at...

• (-3, -4)
• (4, 3)
• (-4, -3)
• (3, 4)

In the equation (x-3)²+(y+4)²=121, the radius of the circle is

• 242
• 11
• 121
• 22

The image provided is the equation of a(n)...

• circle
• ellipse
• parabola
• hyperbola

What does the r in the standard equation stand for?

• r is the distance of the circle

• r is the radius of the circle

• r is the x coordinate of the center of the circle

• r is the y coordinate of the center of the circle

What does (h,k) standard for in the standard circle equation?

• (h,k) is the center of the circle

• (h,k) is a point on the circle.

• (h,k) is a point that we guess and find

• (h,k) is the distance of the circle

What is the radius of the circle

(x+7)²+(y-2)²=144?

• 7

• 12

• 24

• 144

What is the center of the circle with equation x² + y² = 1?

• (1, 1)
• (0, 0)
• not enough information

The distance around the perimeter of a circle is called

• Circle

• Radius

• Diameter

• Circumference