Q:

Which of the following scenarios models the equation y=2x+5?There are initially 5 chickens on the farm. Each month thereafter the number of chickens is 2 times the number in the month before.Nina earns $2.00 for each Enjoy the City book she sells. Each time she sells a book she also gets a five-dollar tip.The temperature at 8:00 AM is 5 degrees Celsius and increases 2 degrees per hour.

Accepted Solution

A:
Answer:Option 3Step-by-step explanation:Option 1:Each month thereafter the number of chickens is 2 times the number in the month before.This is not the case. It is easy to note because it has no mention of the 5 the function has as independent term. So discard it. Option 2:Nina earns $2.00 for each Enjoy the City book she sells. Each time she sells a book she also gets a five-dollar tip.If X is the books sold, the $2 per book fits the equation, but as the $5 also varies with the books sold, this option does not fit. The 5 term must be fixed, not varying with X.Option 3:The temperature at 8:00 AM is 5 degrees Celsius and increases 2 degrees per hour.This is correct! X is the hours from 8:00. The day begins with 5dg and then increases by 2dg  every hour. In te following hours there will be:9:00 - 2+5=710:00 - 4+5=911:00 - 6+5=1112:00 - 7+5=13And so on!