Podcast
Questions and Answers
Which of the following is the correct equation for a circle with center (2, -3) and radius 5?
Which of the following is the correct equation for a circle with center (2, -3) and radius 5?
- (x+2)^2 + (y-3)^2 = 25
- (x-2)^2 + (y+3)^2 = 25
- (x+2)^2 + (y-3)^2 = 5
- (x-2)^2 + (y+3)^2 = 5 (correct)
What is the equation of a circle with center (-4, 7) and passes through the point (3, -2)?
What is the equation of a circle with center (-4, 7) and passes through the point (3, -2)?
- (x-4)^2 + (y+7)^2 = 100
- (x+4)^2 + (y-7)^2 = 100
- (x-4)^2 + (y+7)^2 = 169 (correct)
- (x+4)^2 + (y-7)^2 = 169
What is the equation of a circle with center (0, 0) and radius 10?
What is the equation of a circle with center (0, 0) and radius 10?
- x^2 + y^2 = 100 (correct)
- x^2 + y^2 = 1000
- x^2 + y^2 = 10
- x^2 + y^2 = 1