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anonymous
 one year ago
NEED HELP!!
Question: Using the following equation, find the center and radius of the circle. You must show all work and calculations to receive credit.
Equation: x^2  4x + y^2 + 8y = 4
anonymous
 one year ago
NEED HELP!! Question: Using the following equation, find the center and radius of the circle. You must show all work and calculations to receive credit. Equation: x^2  4x + y^2 + 8y = 4

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I really just don't know hwere to start.

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1Do you know how to complete the square?

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1Ok, do it for me for both x and y. I meant x^2 4x +................. to get a complete the square for x y^2+8y +.................. to get a complete the square for y

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay, so would i use the equation (x a) ^2 + (yb) ^2 = r^2?

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1Of course, but first off, you must complete the expressions above.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I don't know how to solve the expression... Can you walk me through it?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So, is 4 the center?
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