Which of the following depicts a graph of a polynomial with a positive leading coefficient?

B.

Step-by-step explanation:

B is the graph of x^2.

A is the graph of -x^2 + b

C is the graph of -x^3

D has a negative slope.

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

the function makes a strait line horizontally with no x intercept but a y intercept at 9.