A recent survey indicated that residents of a small town take the train to a nearby city eight times per month, on average. The same survey showed that the number of train trips that a resident takes per month (y) is determined by the number of days per month that the resident works in the nearby city (x), according to the equation: y = 2 + 2x. A person who never works in the nearby city is expected to take the train:
From the equation y = 2 + 2x, we can determine the number of train trips (y) based on the number of days worked in the nearby city (x). If a person never works in the nearby city, then x = 0. Plugging in this value, we get y = 2 + 2(0), which simplifies to y = 2. Thus, a person who never works in the nearby city is expected to take the train two times per month.
A person who never works in the nearby city ; therefore x=0 y = 2 + 2x y = 2 + 2(0) y=2