The specific productivity (qp) of cellulase production by aspergillus niger follows a linear relationship with the specific growth rate (µ) and is of the form

Explain please: The specific productivity (qp) of cellulase production by Aspergillus niger follows a linear relationship with the specific growth rate (µ) and is of the form qp = αµ + β, where α and β are constants. Assuming that the values of α and β are 0.006 and 25, respectively, which type of product formation kinetics is TRUE?