Achair is placed near a 26-ft tall tree. a right triangle is formed between the chair, the base of the tree, and the top of the tree. the angle formed at the top of the tree is 56°.
how far from the tree is the chair?
enter your answer as a decimal in the box. round only your final answer to the nearest tenth.
? ft.

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.