http://www.ck12.org Chapter 8. Systems and Matrices
- Confirm your answer to #1 by adding the partial fractions.
- Confirm your answer to #3 by adding the partial fractions.
- Confirm your answer to #6 by adding the partial fractions.
- Confirm your answer to #9 by adding the partial fractions.
A system of equations is a collection of two or more equations with multiple unknown variables. You learned
that solving a system means solving for these variables. Graphically this means finding where the lines, curves or
planes intersect. You learned that a matrix is a rectangular array of numbers that corresponds to the coefficients in
a system. Using a matrix to represent the system is incredibly powerful because it makes it easier to solve for the
variables. In this chapter on systems and matrices, you reviewed techniques for solving systems in two and three
dimensions, learned the basic idea of matrices, exercised different properties of matrices and finally used matrices
to solve systems.