Lilmike234
  • Lilmike234
which of the following graphs matches the circle defined by this equation (x-3)^2+(y+1)^2=25
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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UsukiDoll
  • UsukiDoll
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
  • UsukiDoll
we just need tiny bit of information to graph this...
UsukiDoll
  • UsukiDoll
\[ (x-3)^2+(y+1)^2=25 \] what is the square root of 25?

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More answers

Lilmike234
  • Lilmike234
5
Lilmike234
  • Lilmike234
Here are the answer choices
UsukiDoll
  • UsukiDoll
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
  • Lilmike234
(-2,8) ?
UsukiDoll
  • UsukiDoll
where did that come from? O_O
triciaal
  • triciaal
@Lilmike234 focus on the process the answer will come then you match with what you get
Lilmike234
  • Lilmike234
Im having a hard time finding the answer but I think it was answer choice B
triciaal
  • triciaal
just like the other problem finding the value of a
UsukiDoll
  • UsukiDoll
no... that's not it. It's not B.
UsukiDoll
  • UsukiDoll
what is the center for the equation (x-3)^2+(y+1)^2=25 ?
Lilmike234
  • Lilmike234
(-3,1)=5
UsukiDoll
  • UsukiDoll
opposite signs for the center
UsukiDoll
  • UsukiDoll
x-3= 0 y+1 = 0 solve for x and y
Lilmike234
  • Lilmike234
x=3 y=-1
UsukiDoll
  • UsukiDoll
ok now center is (3,-1) and radius is 5
Lilmike234
  • Lilmike234
So my answer would be C right ?
UsukiDoll
  • UsukiDoll
|dw:1439082976874:dw| that's where our center point is
triciaal
  • triciaal
correct
UsukiDoll
  • UsukiDoll
now to draw the circle.
UsukiDoll
  • UsukiDoll
|dw:1439083095302:dw| it's a bit inaccurate though.. x.x
UsukiDoll
  • UsukiDoll
|dw:1439083134396:dw|
UsukiDoll
  • UsukiDoll
but yes it's C C

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