which describes the locus of points 4 units from (5, 1) in the coordinate plane?
A. circle with center (5, 1), radius 2
B. circle with center (5, 1), radius 16
C. circle with center (5, 1), dimeter 4
D. circle with center (5, 1), diameter 8
Could you please tell me how you got your answer?

Question

which describes the locus of points 4 units from (5, 1) in the coordinate plane?
A. circle with center (5, 1), radius 2
B. circle with center (5, 1), radius 16
C. circle with center (5, 1), dimeter 4
D. circle with center (5, 1), diameter 8
Could you please tell me how you got your answer?

dumbcow · Answer

well if every point is 4 units away from center, then radius = 4

directrix · Answer

@blossombuttercupandbubbles1234 
If the radius is 4, then what would be the diameter of the locus circle?