Perform the folowing transformation on the unit square: sketch the image, find the determinant of the given
matrix, and find the area the image.
a. 3
2 4
b. 2
3 4

c. 1
2 4
d. 2
3 1

e. the determinants in parts (a), (b), (c), and (d) have positive or negative values. what is the value of the
determinants if the vertices (b, c) and (c, d) are switched?

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?