Answer:
(a) Option A, $15
(b) 150, Option B
Step-by-step explanation:
(a) In Option A, the y-coordinate that corresponds to x-coordinate 75 is 45, meaning driving 75 miles costs $45. In Option B, the y-coordinate that corresponds to x-coordinate 75 is 60. $60 is more expensive than $45 for driving the same distance so Option A costs less. [tex]60-45=15[/tex] which is how much less it costs.
(b) The two options cost the same when they share a y-coordinate. This happens at x=150. If Tom drives less than this amount, Option B costs more because it has higher y-values than Option A when x<150.
