Question

!!!!GEOMETRY HELP ASAP!!!!
Using the following equation, find the center and radius of the circle. You must show all work and calculations to receive credit.

x2 − 4x + y2 + 8y = −4
I dont understand how to do this))):

Answer 1

Group the x terms together and complete the square.
Group the y terms together and complete the square.

Put it in the form: (x - h)^2 + (y - k)^2 = r^2
where (h, k) will be the center and r will be the radius.

Answer 2

what do u mean by grouping the x and y terms?

Answer 3

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Answer 4

nvm i got it thnk u!

Answer 5

but i have another question

Answer 6

x^2 − 4x + y^2 + 8y = −4
Group x terms together and the y terms together and complete the square for each group: (x^2 - 4x) + (y^2 + 8y) = -4
complete the square for x^2 - 4x
complete the square for y^2 - 8y