QUIZ 2

  1. Solve this system by Gaussian elimination with partial pivoting:


    \begin{displaymath}\begin{array}{r}x_1-2x_2+4x_3=6\\8x_1-3x_2+2x_3=2\\-x_1+10x_2+2x_3=4\\\end{array}\end{displaymath}


  1. Find the parabola y=A+Bx+Cx^2 that passes through the three points (2,2),(4,-2), and (6,2).