The function s(m) = 5 + 4(m – 1) represents the number of stamps in Rudy’s stamp collection in month m.

What does the value 4 represent in this situation?

Rudy’s collection is worth $4.

Rudy collected stamps for 4 months.

Rudy began his collection with 4 stamps.

Rudy adds 4 more stamps to his collection every month.

Question

The function s(m) = 5 + 4(m – 1) represents the number of stamps in Rudy’s stamp collection in month m.

What does the value 4 represent in this situation?
		
Rudy’s collection is worth $4.
		
Rudy collected stamps for 4 months.
		
Rudy began his collection with 4 stamps.
		
Rudy adds 4 more stamps to his collection every month.

freemap · Answer

I gave you medal for last question. I forgot about it. sorry

directrix · Answer

No worries.

We're on to the stamp problem now.

directrix · Answer

If m = 1, Rudy has  5 + 4*(1-1) = 5 + 0 = 5 stamps.

freemap · Answer

D?

directrix · Answer

I think so. In month 2, he has 5 + 4*(2-1) = 5 + 4 = 9 stamps.

freemap · Answer

Thank you

directrix · Answer

The equation s(m) = 5 + 4(m – 1)  simplifies to

s(m) = 4m + 1. That slope of 4 means the rate of change is 4/1 or 4 stamps more per 1 month more.

I vote for this:  Rudy adds 4 more stamps to his collection every month.

directrix · Answer

You are welcome. (Is it me or is every answer D)

freemap · Answer

lol