as JIMMY SELLS more dogs HIS profit will increase
Jimmy sells teh hot dogs for $1 each one because the slope of the grpah is 1
Jimmy needs to sell 8 hot dogs to recover the money he invested because is when the line touches the x-axis or 0 profit
If Jimmy sells 15 hot dogs, he will make $7 in profit ebcause the point of the line for x=15 is (15,7)
To make $12 in profit, Jimmy sould have to sell 20 hot dogs, because the point if the line for y=12 is (20,12)