Answer:
Consider the following explanation.
Step-by-step explanation:
First off, lets make an equation for it. You have your x and y. With x being the price and y being your output, the pounds.
So you split it up to (.25,21.5) and (.14,27). Then do the y2-y1/x2-x1 for slope, gets you -50. Put that into y=mx+b and solve for b. B is found with being 34. Then put it all together for your demand equation. q=-50p+34 is your demand. Then get revenue which is pq so -50p^2+34p. Do the derivative of your revenue and set = to 0 for maximum revenue price. So -100p=-34. Divide and you get .34 which is your max price for max revenue. For revenue, just plug your price back into your original revenue equation.