Answer the questions. When you have finished, submit this test to your teacher by the due date for full credit. Total score: of 12 points (Score for Question 1: _of 4 points) 1. Write a matrix representing the system of equations x+ 2y+z=5 2x - y+2z =15 3x+ y-z=8 Solve the system by transforming your matrix into reduced row echelon form. State the solution as an ordered triple. Answer:\fPre-Calculus/Trigonometry | Graded Assignment | Semester A Unit 2 Exam, Part 2 (Score for Question 3: _of 5 points) 3. Solve the system of equations by forming a matrix equation. State your answer as an ordered pair. x + 2y=-7 -3x - 5y= 23