The commission Samantha makes for each computer saleThe base pay sammath makes regardless of computer sales The total pay sammath makes each dayThe number of computers sammath sold in a day

The equation represents Samantha's total payment of a day.
[tex]P=6.25x+75[/tex]P is the total payment
x is the number of computers sold
The slope of the line is the coefficient of the x-term, in this case, the slope is m=6.25
It represents the increase in Samantha's payment increase per computer sold.