Question

The table and graph show the daily numbers of views for two videos. Which videos daily number of views grows faster from Day 1 to Day 3?

Video A

Video B

Answer 1

Video A

Explanation:

The number of days is the same in both cases, so we can compare the differences in the number of views.

Video A increases by 128 -54 = 74 views.

Video B increases by 120 -50 = 70 views.

Measured in terms of views per day, Video A grows faster.

Answer 2

Video A

Explanation:

We want to find the rate of change from day 1 to day 3

Video A

m = (128-54)/(3-1)

=74/2

=37

Video B

m = (120-50)/(3-1)

= 70/2

=35

Video A has a greater rate of change