Fit Functions to Real-World Data Practice Test

A student uses a calculator’s regression feature to fit a model to the following data relating the number of weeks since planting ($w$) to the height of a plant ($h$, in cm).

Data: $(1, 4.5), (2, 7.0), (3, 9.5), (4, 12.0), (5, 14.5), (6, 17.0)$

Which function is most reasonable for modeling this data?

A savings account grows by a fixed percent each year. The balance is recorded at the end of each year.

Which type of function best models the relationship between years and account balance?

Years (x): 0, 1, 2, 3, 4, 5

Balance ($y): 1000, 1060, 1123.6, 1191.0, 1262.5, 1338.2