Point Q is plotted on the coordinate grid. Point P is at (30, −30). Point R is vertically above point Q. It is at the same distance from point Q as point P is from point Q. Which of these shows the coordinates of point R and its distance from point Q? a
Point R is at (−40, −20), a distance of 10 units from point Q

b
Point R is at (−40, −40), a distance of 70 units from point Q

c
Point R is at (−40, 40), a distance of 70 units from point Q

d
Point R is at (−40, 20), a distance of 10 units from point Q