which of the following graphs matches the circle defined by this equation (x-3)^2+(y+1)^2=25

Question

usukidoll · Answer

The center-radius form of the circle equation is in the format (x – h)^2 + (y – k)^2 = r^2, with the center being at the point (h, k) and the radius being "r".

usukidoll · Answer

we just need tiny bit of information to graph this...

usukidoll · Answer

$$ (x-3)^2+(y+1)^2=25 $$
what is the square root of 25?

lilmike234 · Answer

5

lilmike234 · Answer

Here are the answer choices

usukidoll · Answer

ok, and what will our h and k be? hint: opposite signs for h,k . it's similar to solving for x and y

lilmike234 · Answer

(-2,8) ?

usukidoll · Answer

where did that come from? O_O

triciaal · Answer

@Lilmike234 focus on the process the answer will come then you match with what you get

lilmike234 · Answer

Im having a hard time finding the answer but I think it was answer choice B

triciaal · Answer

just like the other problem finding the value of a

usukidoll · Answer

no... that's not it. It's not B.

usukidoll · Answer

what is the center for the equation 
(x-3)^2+(y+1)^2=25 ?

lilmike234 · Answer

(-3,1)=5

usukidoll · Answer

opposite signs for the center

usukidoll · Answer

x-3= 0
y+1 = 0
solve for x and y

lilmike234 · Answer

x=3 y=-1

usukidoll · Answer

ok now center is (3,-1) and radius is 5

lilmike234 · Answer

So my answer would be C right ?

usukidoll · Answer

|dw:1439082976874:dw| that's where our center point is