Activity Detail
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Solving Systems of Equations
 


Activity Overview

In this activity, students explore Three different methods for solving linear systems on Voyage 200.

Before the Activity

  • See the attached PDF file for detailed instructions for this activity
  • Print pages 15 - 22 from the attached PDF file for your class

    		•

    		During the Activity

    		Distribute the pages to the class.

    Follow the Activity procedures:
    Solving Systems with the Elimination-by-Addition Method:
  • Study both equations with two unknowns x and y
  • Maniplulate equations algebraically so that one variable is eliminated when the equations are added together

  • Write the solution for one variable and solve the equation for the other variable

    • Solving Systems with the Substitution Method:
  • Study three equations with three unknowns x, y, and z
  • Store all three equations on the calculator
  • Write the first equation for z in terms of x and y
  • Substitute the new equation of z into the two other equations
  • Solve for x and y by elimination method
  • Enter values of x and y and solve for z

    • Solving Systems by the Simultaneous-Equations method:
  • Enter the coefficients as a set (matrix) in brackets
  • Enter the set of result constants (vector) also in brackets
  • Solve equations using matrices

    		After the Activity

    		Review student results:
  • As a class, discuss questions that appeared to be more challenging
  • Re-teach concepts as necessary

    		Other Downloads




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    Subject Area:
    Math : Precalculus / Trig : Systems of Equations

    Author:
    Texas Instruments

    Level:
    9-12

    Activity Time:
    90 Minutes

    Device:
    TI-92 Plus / Voyage™ 200

    Apps:
     

    Software:
     

    Accessories:
     

    Other:
    This is Activity 3 from the EXPLORATIONS Book:
    Discovering Math on the Voyage 200.

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