10.) If two variables are said to have an inverse relationship, then

if A increases, B increases.

if B increases, A is unchanged.

if A increases, B is unchanged but C is forced to grow.

the slope of the graph is positive.

the slope of the graph is negative

13.) Katy's friend invited her to go to the beach this weekend. She planned on staying home and watching her favorite television show with her mother. Which one of the following statements best describes Katy's opportunity cost if she decides to go to the beach with her friends?

watching her favorite television show

going to the mall and eating at a restaurant

staying home and saving gas

buying a new shoes and new jeans

there is no opportunity cost because going to the beach is free

15.)

A firm is said to have comparative advantage in the production of a good when

it can produce with a smaller number of inputs.

it can produce with a larger number of inputs.

it can produce at a lower opportunity cost.

it can produce cheaper.

it can produce even with scarce resources.

21.) How are products with inferior demand defined by economists?

Poor quality product, poorly made, etc.

Product produced in a foreign country

Product produced by poor quality labor or in inefficient factories

Product that consumers demand less of as their income increases

Product that no one buys