Use Inverses to Solve Matrix Equations
Write the Linear System

question 150

Multiple Choice

Use Inverses to Solve Matrix Equations
Write the linear system as a matrix equation in the form AX = B, where A is the coefficient matrix and B is the
constant matrix.
- $$\left[ \begin{array} { r r } 8 & 2 \\3 & - 6\end{array} \right] \left[ \begin{array} { l } x \\y\end{array} \right] = \left[ \begin{array} { l } 6 \\9\end{array} \right]$$

• A) \(8 x + 2 y = 6\)
• \(3 x - 6 y = 9\)
• B) \(8 x + 2 y = - 6\)
• \(3 x - 6 y = - 9\)
• C) \(2 x + 8 y = 6\)
• \(3 x - 6 y = 9\)
• D) \(8 x + 2 y = 6\)
• \(- 6 x + 3 y = 9\)

Explain the concept of antibody diversity and class switching.

Understand the interactions between antigens, MHC molecules, and T cell receptors.

Recognize the implications of immune responses on organ transplants and autoimmune diseases.

Describe the factors affecting the progression of HIV infections and the immune system response.

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