Answer:
shift the production function upward
Explanation:
The production function refers to the input and output relations i.e means if the number of inputs are used so the maximum output could be produced
The production function is
Q = f(L, K)
where,
Q represents the quantity
f represents the factors
L represents the labor
K represents the Capital
If there is an increase in capital stock, the production function is also increases i.e the movement is upward keeping other things constant