Question

A dolphin was swimming 4 feet below sea level. The number line shows the

location of the dolphin. It then dove down 3 feet Describe how to use the
number line to find the new location of the dolphin

Answer 1

-4+(-3)= -7. The dolphin is -7 feet below sea level

Explanation:

Start at -4 on the number line. When you add a negative number to a negative number, you move left on the number line. Move 3 units to the left to land at -7. The dolphin is 7 feet below sea level.