Question

A sea lion was swimming at 2 feet below sea level. The number line shows the location of the sea lion. It then swam down 8 feet. Describe how to use the number line to find the new location of the sea lion.

A) On the number line, move 8 units to the right. End at 6. The sea lion was 6 feet above sea level.
B) On the number line, move 8 units to the right. End at 10. The sea lion was 10 feet above sea level.
C) On the number line, move 8 units to the left. End at -6. The sea lion was 6 feet below sea level.
D) On the number line, move 8 units to the left. End at -10. The sea lion was 10 feet below sea level.

Answer 1

To find the sea lion's new position, move 8 units to the left from -2 on the number line, ending at -10, indicating the sea lion is now 10 feet below sea level.

Step-by-step explanation:

The initial position of the sea lion is at -2 on the number line, representing 2 feet below sea level. To find the new location after the sea lion swims down 8 additional feet, you would move in the negative direction (downward) because the sea lion is going further below sea level. Therefore, on the number line, you move 8 units to the left from -2. Starting at -2 and moving 8 units to the left lands you at -10. Hence, the correct answer is D) On the number line, move 8 units to the left. End at -10. The sea lion is now 10 feet below sea level.