Investigate the price-quantity combination at which the price elasticity of demand for your product is -1?It is not sufficient to simply report such a price and quantity, nor would it be sufficient to plug in a price and quantity and show that at that point, elasticity is -1. You should show an algebraic derivation and explanation of your work to indicate how you calculated this price and quantity.If this combination happened to exist in one of your choices below, you should still show mathematical proof of how these numbers can be algebraically derived, as if you didn't know what they were.

Elasticity measures the responsiveness of product to the changes in price. It is calculated with the formula: Ed = P/Q*dQ/dP For instance, when the price, P changes from $95 to $80, Ed = P/Q*dQ/dP =95/80 * (80 -95) / (100 -25) =3.8 * -15 / 75 = - 0.76 1 2 3 4 5 Price Quantity Elasticity Revenue Marginal Revenue Price 1 95 25 -0.76 Price 2 80 100 -0.16 Price 3 70 150 -0.0933 Price 4 50 250 -0.04 Price 5 35 325 -0.0215 Price 6 15 425 -0.007 Price 7 5 475 -0.002 O