is linear (a straight line).

is negative throughout its length

becomes steeper as the quantity of output increases.

becomes flatter as the quantity of output increases

1-F,2-T,3-F

1-T,2-T,3-F

1-F,2-F,3-T

1-T,2-T,3-T

1-T,2-T,3-T

1-T,2-T,3-F

1-F,2-F,3-T

1-F,2-T,3-F

1-F,2-T,3-T,4-T

1-F,2-T,3-F,4-T

1-F,2-F,3-T,4-T

1-T,2-F,3-F,4-F

A single firm is very large

The government gives a single firm the exclusive right to produce some good.

The costs of production make a single producer more efficient than a large number of producers.

A key resource is owned by a single firm.