What causes the graph of y=x^2 to open downward.

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

What number should be added to both sides of the equation to complete this square? x^2-10x=7

The revenue each season from tickets at the theme park is represented by t(c)=5x. the cost to pay the employees each season is represented by r(x)=(1.5)^x. examine the graph of the combined function for total profit and estimate the profit after four seasons