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g(x) Use the If a price-demand equation is solved for p, then price is expressed as p = g(x) and x becomes the independent variable. In this case, it can be shown that the elasticity of demand is given by E(X)= - price-demand equation below to find the values of x for which demand is elastic and for which demand is inelastic xg'(x) p=g(x) = 180 -0.6x . Demand is elastic for all x in the interval (Type your answer in interval notation.)