Use minimize to find the slope and intercept for the line that minimizes the total squared error. this is the definition of a least-squares regression line. note: minimize will return a single array containing the slope as the first element and intercept as the second. read more of its documentation here or an example of its use here.

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?