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.
-10-9-8
.7
5
4 3 20
2
3
S
21
A. On the number line, move 3 units to the right End at 7. The dolphin
was 7 feet above sea level.
B. On the number line, move 3 units to the left. End at -7. The dolphin
was 7 feet below sea level.
C. On the number line, move 3 units to the right End at -1. The
dolphin was 1 foot below sea level.
D. On the number line, move 3 units to the left End at 1. The dolphin
was 1 foot above sea level.

Answer 1

the answer is B

Explanation:

because the dolphin was 4 feet below sea level and than moved another 3 feet lower so it would be -7 feet below sea level