WA store manager records the number of people who have been in his store compared to the number of hours the store has been open

Question

3 years ago

14

WA store manager records the number of people who have been in his store compared to the number of hours the store has been open

. He graphs the data on the scatterplot below and sketches a trend line.
Store Customers

A graph has hours open on the x-axis, and total customers on the y-axis. A trend line goes through points (1, 25) and (2, 50).

Based on the data collected, if the store has been open 7 hours, which scenario is most likely to be true?
After 1/2 hour, 1 customer had been in the store.
After 6 hours, 129 customers had been in the store.
After 7 hours, 175 customers had been in the store.
After 8.5 hours, 225 customers had been in the store.

Mathematics