High School · Creating Equations

CCSS.MATH.CONTENT.HSA.CED.A.3

Represent constraints by equations or inequalities, and by systems of equations and/or inequalities, and interpret solutions as viable or nonviable options in a modeling context.

Read this standard on the official Common Core site

Lessons that teach this standard

• Writing Equations and Constraints from Situations

  How to turn a situation into an equation or inequality and solve it, why some solutions are not viable, and how a system of inequalities shows every option that works.

• Linear Programming: Optimizing with Constraints

  Find the best value of a linear objective over a region cut out by linear inequalities, and see why the maximum and minimum always sit at a corner.

• Systems of Three Equations in Three Variables

  Solve linear systems in x, y and z by elimination: reduce to two equations in two unknowns, solve, substitute back, and see why a solution is where three planes meet.