Question

An object is placed at 0 on a number line. It moves 3 units to the right, then 4 units to the left, and then 6 units to the right.

The displacement of the object is

Answer 1

Answer: B. 5

Explanation: the right of 0 on a horizontal number line is positive, and then to the left to 0, is negative. So, 3 units to the right is 3, and then 4 units to the left (3 - 4 = -1), then, 6 units to the right (-1 + 6 = 5).

Hope this helped. :)

Answer 2

The answer is +5 units.