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

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Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.