Solve the Problem $\mid \mathrm { C }$ $+ 80 \mid \leq 57$

question 286

Multiple Choice

Solve the problem.
-The temperatures in a freeze-dry process in degrees Celsius roughly satisfy the inequality $\mid \mathrm { C }$ $+ 80 \mid \leq 57$ . What range of temperatures corresponds to this inequality?

• A) \(\left[ - 23 ^ { \circ } \mathrm { C } , 23 ^ { \circ } \mathrm { C } \right]\)
• B) \(\left[ - 137 ^ { \circ } \mathrm { C } , - 23 ^ { \circ } \mathrm { C } \right]\)
• C) \(\left[ - 137 ^ { \circ } \mathrm { C } , 137 ^ { \circ } \mathrm { C } \right]\)
• D) \(\left[ - 23 ^ { \circ } \mathrm { C } , 137 ^ { \circ } \mathrm { C } \right]\)

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Definitions:

Income Effect

The income effect describes the change in an individual's or economy's income and how that change will affect the quantity demanded of a good or service.

Normal Good

A type of good for which demand increases as the income of the consumer increases, holding all else constant.

Wealth Effect

The change in spending and consumption patterns by individuals or households due to changes in their real or perceived wealth.

Substitution Effect

The change in consumption patterns due to a change in the relative prices of goods, leading consumers to substitute away from more expensive goods towards cheaper ones.