If you read this before Wednesday I could really use your help. If you cannot answer this perhaps you know someone that could.

This is for my Pre-Calc.

#1.) The first row of a theater contains 50 seats, and each row there after contains an additional 8 seats. If the theater seats 938 people, find the number of rows in the theater. (I guess I have to use the Arithmetic Sum to find this answer)

#2.) The following statements about f(x) are true:

f(x) is a polynomial function

f(x) = 0 at exactly four different values of x

f(x) -> - infinity as x -> plus/minus infinity

For each of the following statements, write true if the statement must be true, false if the statement is never true, and sometimes true if it is sometimes true and sometimes false.

A.) f(x) is an odd function ____________

B.) f(x) is an even function ___________

C.) f(x) is a fourth degree polynomial ____________

D.) f(x) is a fifth degree polynomial ____________

E.) f(-x) -> - infinity as x -> plus/minus infinity _____________

F.) f(x) is invertible ______________

#3.) At Oceanside dock the first high tide today occurs at 2:00 AM with a depth of 6 meters and the first low occurs at 8:30 AM with depth of 2 meters.

A.) Assuming a sinusoidal function, sketch a graph of the depth of the water, d, at the dock as a function of the time t, after midnight.

B.) Write an equation of the graph showing the depth of the water d at the dock as a function of time t.

C.) Suppose a tanker that requires at least 4 meters of water depth is planning to dock after 9:00 AM. Using your graph in part "a," determine the earliest possible time that the tanker can dock and the longest period of time that the tanker can be docked before the water level becomes too low.

Thank you for your time!