You can use GeoGebra
to solve systems of equations.
GeoGebra
Instruction 1
CAS
CAS
under View
in Menu
. CAS
, pressing Enter
to start a new row for each of your equations. Shift
key, click the box of the first equation and then click the box with the row number of the last equation. Solve
. If you get as the output, the system of equations has no solution. If GeoGebra
returns one of the variables as a function, the system of equations has infinitely many solutions.
You can solve a system of equations graphically by plotting all the graphs in the same coordinate system. The solutions are intersections between the graphs.
GeoGebra
Instruction 2
Graphics View
Algebra View
and Graphics View
under View
in Menu
. CAS
, pressing Enter
to start a new row for each. Toolbar
, click Intersect
. If you can’t find the button, check that you have the Toolbar
for Graphics View
by clicking on any empty space inside the Graphics View
window. Then find the button under the Point
tool list. Graphics View
. The order does not matter. Algebra View
as coordinates of the intersection points.