Pre-Calculus - Lee Academy

Pre-Calculus Curriculum, Lee Academy 10
variables, replacing one equation by the sum of that
equation and a multiple of the other produces a system
with the same solutions.
Common Core State StandardS for matHematICS
6. Solve systems of linear equations exactly and
approximately (e.g., with graphs), focusing on pairs of
linear equations in two variables.
7. Solve a simple system consisting of a linear
equation and a quadratic equation in two variables
algebraically and graphically. For example, find the
points of intersection between the line y = –3x and the
circle x2 + y2 = 3.
demand.
3. Students will be able to solve
systems of two equations graphically
and numerically.
4. Students will be able to solve
systems of equations where one of
the equations is not linear
graphically and algebraically.
5. Students will be able to use matrices
to solve systems of 3 or more
equations using Row – Echelon
Form (REF).
the optimal production
rate for a supply and
demand problem?
3. What are the benefits to
solving a system of
equations graphically or
numerically?
8. (+) Represent a system of linear equations as a
single matrix equation in a vector variable.
9. (+) Find the inverse of a matrix if it exists and use
it to solve systems of linear equations (using
technology for matrices of dimension 3 × 3 or greater).