Answer:
(-4, 0)
Step-by-step explanation:
range applies to the y values.
The lowest y value it hits is -4, while the highest is 0.
Therefore, range is (-4, 0)
3,000 is the answer because when looking for a commission you multiple the sales earning times the percentage but in this case you do the opposite. You divde Phillipes earning by the 12% to get the amount of sales earning you need.