SOLUTION: Hello, can you please show me how to do the work for this question: What is the center for the circle represented by the equation x^2+y^2-4x+2y-4=0?
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Question 771962: Hello, can you please show me how to do the work for this question: What is the center for the circle represented by the equation x^2+y^2-4x+2y-4=0?
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
write it first in the standard form: where is x-coordinate and is y-coordinate of the center (,) and is a radius
...complete square
so, the center is at (,)=(,)
and radius
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