Investigation

Introducing Systems of Non-Linear Equations


  1. The graphs of two non-linear systems are shown.


    1. Describe a scenario that would lead to each graph.

    2. What does the intersection of the curves represent in each scenario.


  2. The following is a system of quadratic equations.

    • Equation 1: \(y = x^2 + 2x +3\)

    • Equation 2: \(y = -x^2 - 2x +3\)

    1. Complete the following tables of values.

      Equation 1
      \(x\) \(y\)
      \(-3\)    
      \(-2\)
      \(-1\)
      \(0\)
      \(1\)
      \(2\)
      \(3\)
      Equation 2
      \(x\) \(y\)
      \(-3\)    
      \(-2\)
      \(-1\)
      \(0\)
      \(1\)
      \(2\)
      \(3\)



    2. Using your tables, state the solution(s) to the system.

    3. Sketch a graph of the system of equations.



    4. Using the graph, state the solution(s) to the system.

    5. Verify your solutions by substituting them into the original equations.