Cherries cost $5 for two pounds and $7.50 for 3 pounds. a. What is the cost per pound? b. Is it constant? c. If you were to grap
h this situation, would you put weight or cost on the x-axis? Which one would you put on the y-axis? d. Plot the two points described e. How much would 5 pounds of cherries cost? What did you do to solve this problem?
It is Constant. The cost per pound is 2.50 dollars. two would be on the x-axis, and 5 dollars would be on the y-axis. likewise, 3 would be on the x-axis, and 7.50 dollars is on the y-axis. 5 pounds would cost : $12.50
The exponential formula for this situtation will be given by: f(x)=ae^(-bx) where: a=initial price b=rate x=time in years hence the formula will be: f(x)=28750e^(-0.12x) thus the value of the car in 2018 will be: x=2018-2012=6 years thus f(6)=28750e^(-0.12*6) f(6)=$13,994.13
