The graph below can be a polynomial of degree 2 or more. 

The angle of elevation from the ground to a point top of a tree is 60 degrees. The height of the tree is 20 meters. What is the approximate distance from the tree to the observer? 

The vertex of a quadratic function is (2, -3), and a point on the graph is (4, 5). Which of the following represents the general form of the quadratic equation?

What are the coordinates of the point on the unit circle at an angle of \frac{9 \Pi }{2} ?

What is the value of sin²tcos²tcosec²tcot²tsec²t? 

For the graph below, b>1 for ab^x..