Tamara wants to calculate the height of a tree outside her home. Using her clinometer, she measures the slope angle from 8 feet away from the base of the tree and gets and angle of 40 degrees. If Tamara’s eye level is 5 feet above the ground, how tall is the tree(rounded to the nearest tenth of a foot)?

Where are the

First locate the turning point (vertex) of the graph. which is at the coordinates x=5 and y=9 or (5; 9).to determine whether it's a maximum or mininum value, you have to discern whether the vertex's y-value is the highest value or lowest value the graph can reach. since the vertex's y-value, 9 is the highest value the graph can reach, it will be a maximum.another basic way to determine whether the vertex's value is max or min is to see if the graph is smiling or sad. if it's smiling, the turning point/vertex would be a minimum, while a sad parabola would have a maximum y-value at the vertex.