Question

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 y equals=9.069.06xplus+651651​, 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 175 minutes.

Answer 1

2236.5

Explanation:

The regression equation for predicting hiker's elevation is

y=9.06x+651.

Here x is the number of minutes.

We wish to estimate hiker's elevation after 175 minutes. For this purpose we put x=175 in the predicted regression equation.

y=9.06(175)+651

y=1585.5+651

y=2236.5

Thus, the hiker's elevation after 175 minutes is 2236.5 feet.