Use the demand equation to find the revenue function. Graph the revenue function and indicate the regions of inelastic and elastic demand on the graph. x= f(p)=35(p-18) The revenue function is R(p)= Graph the revenue function and indicate the regions of inelastic and elastic growth. Choose the correct graph below. O A. OB. O C. OD. AR(p) 312stic Inelastic AR(p) 312astic Elastic AR(p) 3020- Inelastic Q Elastic AR(p) 3020- Elastic Inelastic a 18 E 0- 18 18 18 G