An ant starts at x = 10 cm on a piece of graph paper and

walks along the x axis to x = -25 cm. It then turns around and
walks back to x = -15 cm. Determine (a) the ant’s
displacement and (b) the total distance traveled.

(a) -15 - 10 = -25 cm

(b) 10 + 25 + 10 = 45 cm