The supply and the demand curves for the market of tables are given by: P = 18-3Q P= 4 1Q What is the slope of the supply curve of tables (you must figure out which one is the demand curve and which one is the supply curve)? The result should be an integer number, no decimals (e.g if the result is -3.67, write -4, if the result is 3.67, write 4)