Question

A weight hangs from a spring attached to a ceiling, and the weight moves up and down. The table shows the distance in centimeters, y, between the weight and the ceiling after x seconds.
A 2-column table with 5 rows. Column 1 is labeled x with entries 0, 0.25, 0.5, 0.75, 1. Column 2 is labeled y with entries 19, 22.5, 19. 15.5, 19.

Which equation represents the distance between the weight and the ceiling?

y = 7 sine (pi x) + 19
y = 7 sine (2 pi x) + 19
y = 3.5 sine (pi x) + 19
y = 3.5 sine (2 pi x) + 19)

Answer 1

Option D is the correct answer

y = 3.5 sine (2 pi x) + 19)

Answer 2

It seemed like it should have been so simple. There was nothing inherently difficult with getting the project done. It was simple and straightforward enough that even a child should have been able to complete it on time, but that wasn't the case. The deadline had arrived and the project remained unfinished.