Question

Find centre and radius of circle X square + Y square - 2 X + 4 Y - 4 is equals to zero

Answer 1

Step-by-step explanation:

-2x+4y-4=0

ac+by-c=0

-2x+4y=4

4y=4-2x

y=4-2x/4

X=1

y=1/2

Answer 2

Answer:

Y=1/2

Step-by-step explanation:

I hope its helpfull