To estimate the height of the jin mao tower in shanghai , a tourist sights the top of the tower form a mirror that is 87.6 meters from the tower. the mirror is on the ground and faces up . the tourist is 0.4 meters from the mirror, and the distance from his eyes to the ground is 1.92 meters

Set up a ratio of the height and distances:

Let X equal the height of the tower.

1.92 / 0.4 = X / 87.6

Cross multiply:

(1.92 * 87.6) = 0.4x

Simplify:

168.192 = 0.4x

Divide both sides by 0.4:

x = 168.192 / 0.4

x = 420.48 meters tall.

Round answer as needed.

the final function for the graph becomes x-2=-1. before graphing you solve the equation, where x=1. then graph accordingly.   ( on the x-axis, 1 on the line will possess a vertical line.)