If a​ price-demand equation is solved for​ p, then price is expressed as p=​g(x) and x becomes the independent variable. In this​ case, it can be shown that the elasticity of demand is given by  ​E(x)=−g(x)xg′(x). Use the​ price-demand equation below to find the values of x for which demand is elastic and for which demand is inelastic. p=​g(x)=240−0.6x   Demand is elastic for all x in the interval _________   Demand is inelastic for all x in the interval__________

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
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Chapter1: Functions
Section1.2: Functions Given By Tables
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If a​ price-demand equation is solved for​ p, then price is expressed as

p=​g(x)

and x becomes the independent variable. In this​ case, it can be shown that the elasticity of demand is given by 

​E(x)=−g(x)xg′(x).
Use the​ price-demand equation below to find the values of x for which demand is elastic and for which demand is inelastic.
p=​g(x)=240−0.6x
 
Demand is elastic for all x in the interval _________
 
Demand is inelastic for all x in the interval__________
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