Question

1. a certain land mass has an elevation of 5.2 yards below sea level. sea level is defined as being at an elevation of 0 yards. select the number line that represents all elevations, d, in yards, above the land mass.

Explanation:

Step1: Define elevation range

The lowest elevation is 5.2 yards below sea level, which is $d = -5.2$. The highest elevation is 0 yards (sea level). So the range is $-5.2 < d \leq 0$.

Step2: Match to number line

We need a number line with an open circle at -5.2 (since -5.2 is not included, the land mass goes above this elevation) and extending up to 0. -5.2 is between -6 and -5, closer to -5. Option B has an open circle between -6 and -5, extending to the right towards higher values (up to 0 and above, which covers all elevations from above -5.2 to 0).

Answer:

B. <the number line with open circle between -6 and -5, arrow pointing right>