Question

Suzi starts her hike at 285 feet below sea level. When she reaches the end of the hike, she is still below sea level at −140 feet. What was the change in elevation from the beginning of Suzi's hike to the end of the hike?

Answer 1

• Elevation is the difference between original length and final length

`= 285 - 140 \\ \\ = { \underline{ \: \: 145 \: \: feet \: \: }}`

Answer 2

• 140 ft

Explanation:

• Start point = -285 ft
• End point = - 145 ft

Change in elevation:

• End point - Start point =
• -145 - (-285) =
• 140 ft