A manufacturer of doors, windows, and cabinets writes her yearly profit (in thousands of dollars) for each category in a vector as: Her fixed costs of production can be described by the vector: Use the matrix operations on a graphing calculator to find her income if increasing it two times would cause her profit to be three times as large. (Round to the nearest thousand dollars.)

Question

What will be an ideal response?

Answer 1

2 -  = 3 ;  x₁ = 392, x₂ = 494, x₃ = 828