Elevation is measured as a distance above or below sea level. Sea level has an elevation of 0 feet. Johanna is standing on a hil
lside 35 feet above sea level, and Marcus is exploring a cave at an elevation that is the opposite of Johanna's elevation. What is Marcus's elevation? Plz Help
Marcus's elevation would be 35 feet BELOW sea level and as an integer it is written as -35. This is because the term BELOW describe an integer that is UNDER sea level. Sea level is ALWAYS 0, meaning anything BELOW it is negative and anything ABOVE it is positive. Using a vertical number line can also show you how integers correlate to sea level elevations.
