On a price/quantity graph, a straight horizontal demand curve

a. has zero price elasticity.
b. is perfectly elastic.
c. is perfectly inelastic.
d. is perfectly unit elastic.

b. is perfectly elastic.

Economics

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If marginal product increases with an increase in the variable input, the marginal cost must also increase as more units of the input are hired

a. True b. False Indicate whether the statement is true or false

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Elasticity of demand is likely to be higher for less-expensive goods, other things being equal

a. True b. False Indicate whether the statement is true or false

Economics