Can someone with this question? !

Is the following relation a function? x y 1 4 −1 −2 3 10 5 16 yes no

Which ahows the graph of the solution set of 6x+4y< 12

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