Help would be nice thank you!

Option B

Step-by-step explanation:

Given equation gives the information about the temperature in Vancouver over a period of 4 hours.

y = -2x + 43

Here 43 represents the initial temperature and (-2) represents the temperature fall in every one hour.

x = duration or time

Therefore, equation states that initial temperature when measured was 43 °F and it is dropping by 2 degrees per hour.

Option B is the answer. 

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

you can download it here

step-by-step explanation:

yes it represnts a functio, their are not 2 of the same numbers on the both sides