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10 questions
What is the standard equation of a circle?
(x-k)^{2} + (y-h)^{2} = r^{2}
(x+h)^{2} + (y+k)^{2} = r^{2}
(x-h)^{2} + (y-k)^{2} = r^{2}
(k-x)^{2} + (h-y)^{2} = r^{2}
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
Which graph corresponds to
(x+2)^{2}+ (y-3)^{2}=36
A
B
C
D
What is the equation of a circle with radius 5 and center (-3, 4)?
(x+3)^{2} + (y-4)^{2} = 5
(x-3)^{2} + (y-4)^{2} = 25
(x+3)^{2} + (y-4)^{2} = 25
(x-3)^{2} + (y+4)^{2} = 5
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