If you have a graphing calculator, put the first equation into Y1. And second equation into Y2. Then, find the intersection of the two equations. That's how you find your answer.
Set the equation up as a proportion, where x = the height of the tree in feet 27/x = 4.5/5 cross multiply (4.5)(x) = (27)(5) (4.5)(x) = 135 divide the entire equation by 4.5 to isolate x 135/4.5 = 30 x = 30 the tree is 30 ft tall
The slope is represented by m and the y-intercept is represented by b in the equation y = mx + b. The slope-intercept form for this would be y = -2/3x + 4.
