jmc

Question

Three people are standing on a Cartesian coordinate plane. Robert is standing at point (4,3), Lucy at point (6,1), and Liz at point (1,7). How many units away is the farther person from Robert?

Accepted Answer

We find the distance the two girls are to Robert by using the distance formula. Lucy: (6-4)^2+(1-3)^2 = 8 Liz: (1-4)^2+(7-3)^2=25=5 Liz is farther away from Robert, and the distance is 5 units.