If you rent a car for one day and drive it for 100 miles, the cost is $40.00. if you drive it 220 miles, the cost is $46.00.

use the linear function to find out how much you will pay to rent the car for one day if you drive it 300 miles.

Now, if x = 300 miles, then

y= 1/20*300 + 35

y = 15 + 35

y = 50, therefore it would cost $50.00 to drive the rental car 300 miles.

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.