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Mathematics 7 Online
OpenStudy (bluebeta):

Help attaching picture

OpenStudy (bluebeta):

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OpenStudy (anonymous):

Okay. So in an equation the points (h, k) is the center.

OpenStudy (anonymous):

This is the template for all the equations... \[(x – h)^2 + (y – k)^2 = r^2\]

OpenStudy (bluebeta):

okay im following

OpenStudy (anonymous):

So for number 2 we can see that the center is: \[(4, -7)\]

OpenStudy (anonymous):

Do you see what I did?

OpenStudy (bluebeta):

Sorta. But how do we get #1?

OpenStudy (anonymous):

Well I am going to help with that last, because the rest are faster.

OpenStudy (anonymous):

Now part 2 of number 2..

OpenStudy (anonymous):

What is the radius of the equation...

OpenStudy (anonymous):

So \[r^2\] is the radius squared.

OpenStudy (anonymous):

So in this \[r^2\] is 4 so we have to square root 4 and we would get 2! So the radius is 2!

OpenStudy (anonymous):

Do you see that? @bluebeta

OpenStudy (anonymous):

Now just do the same to the rest.. now lets do number 1.

OpenStudy (bluebeta):

Yes, I see it.

OpenStudy (anonymous):

It would be: \[(x - 12)^2 + (y + 16)^2 = 16\]

OpenStudy (anonymous):

Hope this helped! Have a great day! Also a medal would be much appreciated! Just click best response next to my answer. Thank You! @bluebeta

OpenStudy (bluebeta):

@Tom_Boy_Rebel You're awesome!! You helped me understand a bit better! Thanks!

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