A bowling alley offers special weekly bowling rates. The weekly rates are 5 games for $15, 6 games for $17.55, 7 games for $20.10, and 8 games for $22.65. lf this pattern continues, how much will it cost to bowl 10 games in a week?
The thing to do is experiment with ideas that associate the numbers looking for a pattern of behaviour. Eventually you should find something that works.
Lets try dividing cost by count
NOTHING AMEDIATELY OBVIOUS!
Actually there is something hear but it is hidden.
Lets try rate of change.
1st pair to 2nd pair:
2nd pair to 3rd pair:
3rd pair to 4th pair:
This is the same thing as a straight line graph
For each increase in x by 1 the y increases by 2.55
So 2.55 is the value of
Picking on any pair; I select
We need 10 games so