Grade 7

October 7 - 11, 2019

Question 1

Question 2

Distance is positive. Change in elevation or temperature may be positive or negative depending on whether it is increasing or decreasing (going up or down). a. A hiker starts hiking at the beginning of a trail at a point which is 200 feet below sea level. He hikes to a location on the trail that is 580 feet above sea level and stops for lunch.

i. What is the vertical distance between 200 feet below sea level and 580 feet above sea level ?

ii. How should we interpret 780 feet in the context of this problem?

b. After lunch, the hiker hiked back down the trail from the point of elevation, which is 580 feet above sea level, to the beginning of the trail, which is 200 feet below sea level.

What is the vertical distance between 580 feet above sea level and 200 feet below sea level?