Question

A student reads 65 pages per hour proportional relationship

3 hrs= 195 pages
5hrs= 325
9=585
10= 6500
Is the relationship proportional. Explain.

Answer 1

Yes. The relationship is proportional. This is because y is dependent on the changes of x with the constant rate of proportionality.

Direct proportion formula is:

y = kx

where k is the constant of proportionality.

In this case, k = 65 pages. x = number of hours. y = total pages read in x hours.

y = k * x
65 = 65 1 hr
195 = 65 3 hrs
325 = 65 5 hrs
585 = 65 9 hrs
6500 = 65 10 hrs