Question

Assume you have collected data pairs (x, y) on a certain variety of tree. x is the number of weeks since the tree was planted and y is the height of the tree in inches. A plot of the data points with the best-fit line is given below. What age is predicted by the best-fit line for a height of 70 inches?

Answer 1

60 inches

Step-by-step explanation:ap3x

Answer 2

We have to draw a horizontal line that goes trough 70 (half way between 60 and 80) and is parallel with the Age axe.
From the point where this line intersects the red line, we drop a vertical line to find out the age. It looks like is going to be 50, yet you got the graph and the ruler