Part a
the beginning of a hiking trail is exactly at sea level. there are three rest stops along the trail. the elevation of the first rest stop is -15 feet. the elevation of the second rest stop is -20 feet. the elevation of the third rest stop is 7 feet. john compares the elevations, in feet, of the first two rest stops by writing the inequality -15 < -20. john states that the inequality he wrote is correct because 15 is less than 20.

part b explain whether the inequality jack writes is correct or incorrect. in your explanation, include a description of each value in the inequality in terms of what it represents. the beginning of a hiking trail is exactly at sea level. there are three rest stops along the trail. the elevation of the first rest stop is -15 feet. the elevation of the second rest stop is -20 feet. the elevation of the third rest stop is 7 feet. john compares the elevations, in feet, of the first two rest stops by writing the inequality -15 < -20. john states that the inequality he wrote is correct because 15 is less than 20. the change in elevation is greatest between the beginning of the trail and which rest stop? explain your reasoning.

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