Q3. D= f (PX) is a general form of demand function, does not explain the nature and magnitude of the relationship between dependent and independent variable? How will you explain bivariate and...

Q3. D= f (PX) is a general form of demand function, does not explain the nature and
magnitude of the relationship between dependent and independent variable? How will you
explain bivariate and multivariate demand functions with reference to price, income, price of
related goods (substitute goods) in specific linear and non-linear form of demand function?