Question

Jeff is traveling from Atlanta to Columbia and then to Charleston. He decides to plot the cities on a coordinate plane. He puts Atlanta at (0, 0), Columbia at (21, 0) and Charleston at (24, -11). He lets each tick mark represent 10 miles. Which formula would correctly give the distance from Atlanta to Charleston?

Answer 1

A)
242 + (-11)2
B)
242 - 112
C)
32 + (-11)2
D)
32 - 112

Answer 2

Square Roots above all.