This Function is: PY = $300       PL = $1.50       I = $40000            A = $200000                        QX = 197000 -100PX +50P­Y +.025I +.02A + 10000PL   Calculate the point price elasticity of demand at PX = $250 (which should make QX = 207000).  Does this elasticity value indicate that the demand for Brand X washing machines is relatively responsive to changes in the price of these machines?  Explain why or why not.  The formula is:   Ep = deritiveQx / deritive Px * Px / Qx

Suppose demand is given by p = 1600 − x. Find the maximum revenue.

The U.S. population can be modeled by the function y=165.6x¹.345, where y is in thousands and x is the number of years after 1800. (a) What was the population in 1970, according to this model? (b) is the graph of this function concave up or concave down? What does this mean? (c) Use numerical or graphical methods to find when the model estimates the population was 94,150,000. (a) According to the model, the population in 1970 was thousands. (Round to the nearest integer as needed.)

A software entertainment company recently ran a holiday sale on its popular software program. Using data collected from the sale, it is possible to estimate the demand corresponding to various discounts in the price of the software. Assuming that the original price was $36, the demand for the software can be estimated by the function -2.504 q=3,742,000p the elasticity of demand. where p is the price and q is the demand. Calculate and interpret What formula should be used to compute the elasticity of demand, E, if q is demand at a price p? O A. E= P dp dq b. P dq q dp. O B. E= - C. E=p dq O D. E=q dp