He earns 18% tips on his food sales. So, his tips are proportional to the amount of food he sells.
From what you know about the restaurant business, what would have to be true for his tips to be proportional to the amount of hours he works?
Do you think that situation (Michael's amount of food sales being the same every hour) is likely in a real restaurant?
After 1 year it is worth 108% of its original value
108% = 1.08
so 1.08 x 1000 = $1080
After 2nd year it is worth 92% of that $1080
92% = 0.92
so 0.92 x 1080 = $993.60
(6,3) (1,4)
4-1/3-6
3/-3
The slope is -1
Hope that helped
Jabardasth question is the scale factor is 2