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ICE Princess25 [194]
3 years ago
11

The equation x 2 + y 2 − 4 x + 2 y = b x 2 +y 2 −4x+2y=b describes a circle. determine the y coordinate of the center of a circl

e
Mathematics
2 answers:
Gelneren [198K]3 years ago
8 0

Answer:

-1

Step-by-step explanation:

x²+y²-4x+2y=b

x²-4x+4+y²+2y+1=b+4+1

(x-2)²+(y+1)²=b+5

center is (2,-1)

Elan Coil [88]3 years ago
4 0

Answer

Here’s a graph. Hope this helps.

Step-by-step explanation:

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avanturin [10]

Answer:

c = -1

Step-by-step explanation:

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<u>      - 15   -15</u>

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