How is slope of supply curve measured - Economics - The Theory of The Firm Under Perfect Competition

Question

How is slope of supply curve measured?

Tanu Jain · Accepted Answer

Dear Student,
The Slope of the Supply Curve Since slope is defined as the change
in the variable on the y-axis divided by the change in the variable
on the x-axis, the slope of the supply curve equals the change in
price divided by the change in quantity

The law of supply states that all else being equal,
the quantity supplied of an item increases as the price increases
and vice versa The “all else being equal” part is
important here, since it means that input prices, technology,
expectations, etc are all held constant and only the price is
changing

The vast majority of goods and services obey the
law of supply, if for no other reason than it's more attractive to
produce and sell an item when it can be sold at a higher price
Graphically, this means that the supply curve usually has a
positive slope, i e slopes up and to the right

Regards,