An electronics store is having a going-out-of-business sale. They have 220 computers in their inventory, and they believe they can sell 3 computers every day. If y represents the total number of computers in their inventory and x represents the number of days, which function rule describes this situation?

A. y=3x-220

B. y=220-3x

C. y=3 (x-l) - 220

D. y=220-3 (x-1)

Question

Marianna Watkins

29 December, 19:38

+2

Answers (1)

Know the Answer?

Brynlee · Answer 1

We know:

-->y (0) = 220

-->dy/dx = - 3

So int (dy=-3dx) = y=-3x+C

at y (0) - - > 220=-3 (0) + C

Therefore C = 220

Thus y=220-3x []