Tristan is going to use a computer at an internet cafe. The cafe charges an initial fee
to use the computer and then an additional price per minute of usage. Let C
represent the total cost of using a computer for t minutes at the internet cafe. The
table below has select values showing the linear relationship between t and C.
Determine the number of minutes Tristan can use a computer if he only has $10.25
available to pay.
t
C
2
10.00
6
12.00
7.5 12.75


Answer :