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anonymous
 5 years ago
The center of a circle with a radius of three units is (1,1). Which of these points is on the circle?
A. (4,4)
B. (2,1)
C. (4,1)
D. (3,0)
anonymous
 5 years ago
The center of a circle with a radius of three units is (1,1). Which of these points is on the circle? A. (4,4) B. (2,1) C. (4,1) D. (3,0)

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Hero
 5 years ago
Best ResponseYou've already chosen the best response.0Plot all the points on an xy plane or use the distance formula. Whichever point is a distance of 3 units from 1,1 is the correction solution.

Hero
 5 years ago
Best ResponseYou've already chosen the best response.0That's not 3 distance units. Did you use the distance formula?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0well...plotting all the point and visualize everything will give you a feeling for the solution but the real way to do it is with the distance formula...which i cant recall...but A is a trap!

Hero
 5 years ago
Best ResponseYou've already chosen the best response.0Actually hat, the quickest way is to plot the points on an xy plane. That's why I know the answer is B

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes i would go with B as well...just a huntch

Hero
 5 years ago
Best ResponseYou've already chosen the best response.0Distance Formula takes longer, thats why I suggested plotting on xy plane first.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0distance formula takes longer but if u dont have designing tools around you distance formula can be a lot faster

mathmate
 5 years ago
Best ResponseYou've already chosen the best response.1Also check visually points that line up with the centre, like (*,1), or (1,*). The distance formula reduces to the difference. B is such a case. However, we don't always get lucky this way.

Hero
 5 years ago
Best ResponseYou've already chosen the best response.0I don't consider graph paper a "designing tool"

Hero
 5 years ago
Best ResponseYou've already chosen the best response.0By default, if you're taking a math class, you should have graph paper handy
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