Question

a tourist information center charges $10 per hour to rent a bicycle. is the rental charge proportional to the number of hours you rent the bicycle

Answer 1

Yes they are because it is a constant rate of 10:1

Answer 2

For this case, the first thing we must do is define variables.

We have then:

x: number of hours

y: total rental charge

The equation modeling the problem is given by:

$y = 10x$

From here, we observe that the relation between both variables is proportional, being the constant of proportionality equal to $ 10 per hour.

Answer:

The rental charge is proportional to the number of hours you rent the bicycle:

$y = 10x$