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anonymous
 one year ago
Please help! I only have about 20 minutes for this problem!
A circle has its center at (2, 4) and a radius of 6 units. What is the equation of the circle?
anonymous
 one year ago
Please help! I only have about 20 minutes for this problem! A circle has its center at (2, 4) and a radius of 6 units. What is the equation of the circle?

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♪Chibiterasu
 one year ago
Best ResponseYou've already chosen the best response.0Do you know how to form an equation for a circle?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Not really, I didn't understand that part in my math lesson quite well. It's the only thing I'm struggling with.

Mertsj
 one year ago
Best ResponseYou've already chosen the best response.0Why do you only have 20 minutes for this question?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I'm going somewhere in 20 minutes but this was a last minute thing. :/

Mertsj
 one year ago
Best ResponseYou've already chosen the best response.0What is the (h,k) form of the equation of a circle?

♪Chibiterasu
 one year ago
Best ResponseYou've already chosen the best response.0The circle's center is not at the origin so we will be using the h, k equation. \[(x  h)^2 + (y  k)^2 = r^2\] You just . . . fill it in. This is really all you need to know. If the center is at the origin just use: \[x^2 + y^2 = r^2\]

♪Chibiterasu
 one year ago
Best ResponseYou've already chosen the best response.0You fill in for h and k, not for x and y.

♪Chibiterasu
 one year ago
Best ResponseYou've already chosen the best response.0Remember to alternate the signs when necessary!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0(x  h)^2 + (y  k)^2 = r^2 (h, k) = center and r = radius so for when its center is at (2, 4) and it has a radius of 6 plug in h=2 , k=4 , and r=6 into the circle equation ?? That correct?

♪Chibiterasu
 one year ago
Best ResponseYou've already chosen the best response.0Remember that inputting negatives will switch the  to a +
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