Question

figure 11 - 17
refer to figure 11 - 17. starting from point d, a movement along isoquant2 to point f
increases the total cost of production and decreases output.
increases the total cost of production with no change in output.
increases both the total cost of production and output.
increases output but not the total cost of production.

Explanation:

Isoquants represent different combinations of inputs (capital and labor) that produce the same level of output. Moving along an isoquant means output remains constant. Points on an isoquant further from the origin typically require more of both inputs or a more costly combination of inputs. Moving from point D to point F along isoquant2 means output stays the same as they are on the same isoquant, but the combination of capital and labor changes in a way that likely increases the total cost of production (as we move to a combination that may be less efficient in terms of cost - for example, using more of both or more of a relatively expensive input).

Answer:

Increases the total cost of production with no change in output.