CIRCLES I NEED TO KNOW HOW TO LIKE SHOW WORK TO THE PROBLEM.

Mathematics
Tutor: None Selected Time limit: 1 Day

I need to know how to do the problem like every step how to find it. STATE THE CENTER AND RADIUS OF EACH CIRCLE WHOSE EQUATION IS GIVEN

1. X^2+(Y-3)^3=36

2. (X+2)^2+(Y-2/3)^2=8

3. X^2+(Y+5)^2=81/64

Jan 13th, 2015

1. X^2+(Y-3)^2=36

    X^2+(Y-3)^2=6^2

  When X^2+(Y-3)^2=0, x=0 and y-3=0. So x=0, y=3 is the center of this circle. The radius would be 6.

2. (X+2)^2+(Y-2/3)^2=8

   (X+2)^2+(Y-2/3)^2=(8^1/2)^2

 When (X+2)^2+(Y-2/3)^2=0, x+2=0 and y-2/3=0. So x=-2, y=2/3 is the center of this circle. The radius would be 8^1/2.  

3. X^2+(Y+5)^2=81/64

   X^2+(Y+5)^2=(9/8)^2

 When X^2+(Y+5)^2=0, x=0 and y+5=0. So x=0, y=-5 is the center of this circle. The radius would be 9/8.


Jan 13th, 2015

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