An exponential function with base greater than 1 eventually shows rapid growth. True or false

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

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?