f is a trigonometric function of the form f(x)=acos(bx+c)+d. Below is the graph of f(x). The function has a maximum point at (pi,6) and a minimum point at (−3π/4 ,2). Find a formula for f(x). Give an exact expression.

The dance committee of pine bluff middle school earns $72 from a bake sale and will earn $4 for each ticket they sell to the spring fling dance. the dance will cost $400 write an inequality to determine the number, t of tickets the committee could sell to have money left over after they pay for this year's dance. what is the solution set of the inequality?