重点是用英文怎么答

来源:学生作业学帮网 编辑:学帮网 时间:2024/05/05 18:37:37


重点是用英文怎么答

The meaning of the derivative f'(8) is the change rate of the quantity of the coffee sold at 8 dollars per pound with the change of the sale price by every pound.
The unit is pound(weight)/pound(price)
f'(8) is negative.
If the sales price increase the quantity will decrease.