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=7.63x+697, 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.
To estimate the hiker's elevation after 155 minutes using the equation of the trend line y = 7.63x + 697, we simply substitute x = 155 into the equation and solve for y.
Plug in x = 155 into the equation:
y = 7.63 * 155 + 697
Evaluate the expression on the right side of the equation:
y = 1186.65 + 697
Combine like terms:
y ≈ 1883.65
Therefore, the estimated hiker's elevation after 155 minutes is approximately 1883.65 feet.