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Mathematics 12 Online
OpenStudy (anonymous):

Which of the following points is on a circle with equation (x + 1)2 + (y − 5)2 = 25? Answer Choices: a. (-1,5) b. (24,5) c. (4,10) d. (-1,0)

OpenStudy (mathstudent55):

Plug in each point into the equation, and see which one makes the equation true.

OpenStudy (imstuck):

Also, if you plot the center and then the 4 radii from the center you can see whereabouts that point is on your circle. But to get the exact answer, plug in your x and y coordinates to see which pair comes out to 25.

OpenStudy (anonymous):

A? @mathstudent55

OpenStudy (anonymous):

wait i think i did something wrong :(

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