Lucas spends 2.5 dollars each day on coffee.
How do we find the amount Lucas spends each day on coffee?
Lets identify the two main coordinate on the graph which are;
and (50) and (20)
He has paid a total amount of 50 dollars so far
he has gotten a total of 20 cups so far
We can divide the amount spend on coffee by the total number of cups he has gotten so far.
We can say 50/20 = 2.5.
Therefore, we can conclude that Lucas spends around $2.5 per day getting coffee.