Question

Hiking  The scatter plot shows a​ hiker's elevation above sea level during a hike from the base to the top of a mountain. The equation of a trend line for the​ hiker's elevation is yequals9.35xplus691​, where x represents the number of minutes and y represents the​ hiker's elevation in feet. Use the equation of the trend line to estimate the​ hiker's elevation after 155 minutes.
Hiker's Elevation
0
75
150
0
1,500
3,000
Time (minutes)
Elevation (ft)



x y graph
Question content area bottom
Part 1
After 155 ​minutes, the​ hiker's elevation will be about
  
enter your response here feet above sea level.
​(Round to the nearest whole number as​ needed.)

Answer 1

y = 9.35(155) + 691 = 1449.25 + 691 = 2140.25, so about 2140 feet above sea level.