When isoquants are shaped as right angles rather than downward-sloping curves, what is the relationship between capital and labor? Capital and labor are perfectly substitutable. Technical progress occurs with more capital but no additional labor. Additional output will be produced with more capital but no additional labor. Capital and labor must be used in fixed proportions.

When isoquants are shaped as right angles rather than downward-sloping curves, what is the relationship between capital and labor?

Capital and labor are perfectly substitutable.

Technical progress occurs with more capital but no additional labor.

Additional output will be produced with more capital but no additional labor.

Capital and labor must be used in fixed proportions.