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How to Find the Zeros of a Function in GeoGebra
There are two options for finding the zeros of a function in GeoGebra: The first is to use CAS, and the other is to use the Algebra View and Graphics View.
GeoGebra Instruction 1
CAS
- 1.
- Open
CASunder
Viewin
Menu. - 2.
- Enter
< <Your Expression> =0>inCAS. - 3.
- Press
Solve
or Solve Numerically
to find the zeros.
GeoGebra Instruction 2
Algebra View and Graphics View
- 1.
- Open
Algebra ViewandGraphics Viewunder Viewin Menu. - 2.
- Type your function into
Algebra Viewand pressEnter. - 3.
- To find the zeros, use the command
Root(<Polynomial>)
and press
Enter.
Note! If your problem has a domain for the function, use Roots(<Function>, <Start x-value>, <End x-value>) instead. Type in the start and end values of the interval in the <Start x-value> and <End x-value> fields.
