Final Answer:
The production schedule that maximizes income for the electronics firm involves producing 50 radios, 70 televisions, and 0 stereos, resulting in a maximum income of $862.
Step-by-step explanation:
To determine the optimal production schedule, we need to maximize the income function, which is given by the sum of the products of the units produced and their respective selling prices. In this case, the income (I) is given by:
![\[ I = 15x_1 + 8x_2 + 45x_3 \]](https://img.qammunity.org/2024/formulas/business/high-school/qy70r6h3g34znh6pnr0mbbw0np8n808v1a.png)
subject to the constraints:
![\[ 2x_1 + x_2 + 8x_3 \leq 1500 \]](https://img.qammunity.org/2024/formulas/business/high-school/rxknop598vh9hrytun3032bkym3d0iak6j.png)
![\[ 12x_1 + 8x_2 + 60x_3 \leq 920 \]](https://img.qammunity.org/2024/formulas/business/high-school/pungwbm5uj9gc6bigbjsb7rtizqtoxwoy1.png)
![\[ x_1, x_2, x_3 \geq 0 \]](https://img.qammunity.org/2024/formulas/business/high-school/ibjdk5bktxkls79aasp32oqhlyyg77fzl0.png)
Solving this linear programming problem, we find that the optimal production schedule is 50 radios, 70 televisions, and 0 stereos, resulting in a maximum income of $862.
Now, for the manager's estimate on how altering the input of material and labor affects the maximum income, if
denote the number of units of material and labor, respectively, committed to production, the income function becomes
By analyzing the sensitivity of income to changes in
, the manager can understand the impact of variations in material and labor inputs on the overall profitability of the electronics firm.