The demand for good g depends on a vector of four

Question

Question: The demand for good G depends on a vector of four explanatory variables x. There is a linear relationship, including a constant term, between these explanatory variables and g, the amount of good G demanded such that g = βx where β is the vector of coefficients

β = [β₀  β₁  β₂  β₃  β_{4]  =  [ 36     -0.4      0.02      1.2      0.3]}

Calculate the demand for good G when the vector of values of the explanatory variables is