The production function is a mathematical function that shows: 1. the relationship between output and the factors of production. 2. the most cost-efficient means of producing output.3. how various inputs are produced. 4. the most efficient level of output produced in an economy.

1. The relationship between output and the factors  of production

Explanation:

The production function is mathematical equation that express the relationship between the resources or input devoted towards production (e.g labour and capital ) and the output (i.e amount of product obtained.  

It shows  the amount of output  that is obtainable from every combination of resources of production , assuming that the most efficient available methods of production are used.

answer; coefficient of correlation;