圆心为(-1, 2),半径为4的圆的方程是() A.(x+1)2 +(y-2)
题型:选择题
问题:
圆心为(-1, 2),半径为4的圆的方程是( )
A.(x+1)2 +(y-2) 2 =16
B.(x-1)2 +(y+2) 2 =16
C.(x+1)2 +(y-2) 2 =4
D.(x-1)2 +(y+2) 2 =4
圆心为(-1, 2),半径为4的圆的方程是( )
A.(x+1)2 +(y-2) 2 =16
B.(x-1)2 +(y+2) 2 =16
C.(x+1)2 +(y-2) 2 =4
D.(x-1)2 +(y+2) 2 =4