To address your problem, let's go through each part:

Part 1: Plotting Input Combinations on the Isoquant

You want to plot combinations of labor ($L$) and land ($T$) that yield a total output of two bushels on the provided isoquant graph. You specified values for $L = 1, 2, 4, 8,$ and $16$.

To proceed accurately, I need the production function equation. Common forms include Cobb-Douglas, where output $Q = AL^\alpha T^\beta$, or another specified relationship. Could you confirm the function form so I can plot the values correctly?

Part 2: Calculating Marginal Output

With a land constraint of $T = 6$ units, we need to determine the additional output from increasing $L$ from 1 to 2 units. This involves evaluating the production function at these points and finding the difference.

Could you provide the function form, or should I assume a generic approach like a proportional or constant returns function?

Once clarified, I can delve into the calculations and plotting.

Would you like detailed steps on either part? Here are some relative questions for further exploration:

1. What are typical shapes of isoquants for different types of returns to scale?
2. How does an increase in one input impact output under constant returns to scale?
3. What is the significance of diminishing marginal returns in this scenario?
4. How does an isoquant differ in perfect substitutes vs. complementary inputs?
5. What are practical applications of isoquant analysis in production planning?

Tip: Isoquants provide insights into optimal input combinations, helping balance cost and efficiency in production