The total costs for a job can be calculated with the function k(d) = 165d + 125. kis the total cost in euros and d is the amount of days it takes to finish the job.
a. What kind of fuction is k?
b. Calculate the value of the function k(3)
c. What does the answer of b. mean?
d. Calculate for which value the following function for d is possible k(d) = 1280
e. What does the answer of d. mean?