X: 2,4,5,7,8 y: 4,8,10,14,16 does this table represent a non or linear function?

answer: domain and range mean all possible values of x and y that could be substituted to the inequality. a solution means all possible values that make the inequality statement true. so while the range is still all real numbers, the solution is the shaded area, for which y will always be greater than the line of the function.