Which of the following represents a function? (3, 4), (-3, 2), (3, 8), (5, 5) (2, 3), (4, 3), (-2, -3), (-4, -3) (-1, 2), (-2, 1), (-1, -2), (-2, -1) (5, 1), (5, 2), (5, 3), (5, 4)

What is the range of this function? all real numbers such that y ≤ 40 all real numbers such that y ≥ 0 all real numbers such that 0 ≤ y ≤ 40 all real numbers such that 37.75 ≤ y ≤ 40

Which table shows a proportional relationship between miles traveled and gas used?

Can someone me with this? i’m not sure what to put for my equations.