A. Yes. Each x value has only one y value. No x value has 2 different y values. B. For the table, y is 8 when x is 11. Plug in the value to determine the y value for the equation. f(x)= 5(11)-21 f(x)= 55-21 f(x)= 34 Since 34>8, the value of the equation f(x) is greater when x=11. C. 99=5x-21 120=5x x=24 Final answer: 24
