Answer:
C. Desert shores is below sea level.
F. The difference in the elevation is more than 600 feet.
Explanation:
Let
x -----> the elevation of Chicago, Illinois in feet
y ----> the elevation of Desert shores, California in feet
we have
----> is positive because is above sea level
----> is negative because is below sea level
Remember that the sea level represent the zero level
To find out the difference in elevation, subtract the elevation of Desert shores from the elevation of Chicago, Illinois.
![600-(-200)=600+200=800\ ft](https://img.qammunity.org/2020/formulas/mathematics/middle-school/nai0j0e425rjkjiquoiwqex7nkpbwhwgzj.png)
Verify each statement
case A) Desert shores is above sea level
The statement is false
Because is below sea level
case B) Desert shores is at sea level
The statement is false
Because is below sea level
case C) Desert shores is below sea level.
The statement is True
case D) The difference in the elevations is less than 600 feet.
The statement is false
Because the difference in the elevations is greater than 600 feet
case E) The difference in the elevation is 600 feet.
The statement is false
Because the difference in the elevations is 800 feet
case F) The difference in the elevation is more than 600 feet
The statement is True