mmmh,
have you tried substituting t = 4 into the equation and comparing that answer to your graph result when t = 4 on the horizontal axis ?
Value of computer software
The value v of a shopkeeper's inventory software program, in hundred of dollars, is given by
v=-3/4t+6, where t is the number of years since the shopkeeper first bought the program.
Graph the equation and use the graph to estimate what the program is worth 4 years after it was first purchased.
1 answer