Math 117 -Quantitative Analysis I
Study Guide - Quiz # 3
  1. Application problem -- similiar to lab 3 (but smaller in size) and similar to p. 238 # 57
  2. p. 254 # 15,16 (2 by 2 system) -- you will have to use the Gauss Elimination method. It's not just the answer that I'm interested in -- it's the method for finding the answer!
  3. Construct the augmented matrix from a system of equations, and, given an augmented matrix, write the system of equations. p. 254 # 3-6
  4. Read off answers from final tableau and identify solutions and when system doesn't have solutions p.254 # 7 - 10, 27 - 30
  5. For a given augmented matrix -- perform the necessary steps to "get the first column in order" i.e. 1 in the upper

    6. left hand corner and 0's elsewhere in the first column. Problem similar to example 1 on p.243 -- ONLY the first column.
  6. Solve a system of equations using inverse matrices, as in p. 270 # 37, 39.  You will be expected to use Excel's Minverse and mmult functions to do this, and be able to interpret the result.
  7. Setup and solve a Leontief matrix for a given problem, similar to the wood-coal-gas problem described in notes # 10 or p. 283 # 13, 14.  You will need to use Excel to solve this problem.
  8. Be able to manipulate linear inequalities in one variable. Problems like 1-15 on p. 302.