Zipping, Zapping, and Zooming In (2 of 2)
Would you dare to be zapped?
OBJECTIVE: To learn how to solve simultaneous equations algebraically (elimination method)
In the previous lesson, you learned the first of two algebraic methods to solve systems of linear equations—the Substitution Method.
Zipping, Zapping, and Zooming In: https://www.geogebra.org/m/fzdhckge
In this lesson, you'll learn the second method—Elimination Method (Zapping)—to Zoom In on the solution to systems of linear equations.
The Elimination Method works best when both linear equations are written in STANDARD FORM (Ax + By = C) and it won't be easy to isolate any of the variables (as when all variables have numerical coefficients other than 1).
Watch the following video to learn how to use the Elimination Method (Zapping).
THANK YOU, PROFESSOR LEONARD!
Use the applet below for practice on the Elimination Method.
INSTRUCTIONS:
1. On a separate sheet, solve the system of linear equations shown on the applet using the Elimination Method.
2. Once you obtain your solution, move the BIG WHITE POINT (shown in the Cartesian plane on the left) to the location of the solution of this system.
3. If you solve the system correctly, the applet will automatically notify you. If you don't get it right, review your solution.
Repeat as many times as needed to master the concept.
Applet by Tim Brzezinski
The applet below can also be used to practice solving systems of two linear equations using the Elimination Method.
INSTRUCTIONS:
1. On a separate sheet, solve the system of linear equations shown on the applet using the Elimination Method.
2. Once you obtain your solution, enter your answers in the corresponding boxes for x and y.
3. If you solve the system correctly, a big 
sign will appear. If you don't get it right, review your solution.
Repeat as many times as needed to master the concept.
sign will appear. If you don't get it right, review your solution.
Repeat as many times as needed to master the concept.TODAY you learned how to solve systems of linear equations using the Elimination Method (Zapping).
In future lessons, you'll continue discovering Toolboxes and Tools in the Geogebra Classic app. Did you ENJOY today's lesson?