Consider the linear system y Ay, where A is a real 2 x 2 constant matrix with repeated eigenvalues. Use the given information to determine the matrix A. Phase plane solution trajectories have...

Extracted text: Consider the linear system y Ay, where A is a real 2 x 2 constant matrix with repeated eigenvalues. Use the given information to determine the matrix A. Phase plane solution trajectories have horizontal tangents on the line y2 = 2y1 and vertical tangents on the line y1 = 0. The matrix A has a nonzero repeated eigenvalue and a21 = -6. A =