How to Find the Zeros of a Function in GeoGebra

CAS

1.

Open CAS under  View in  Menu.

2.

Enter < <Your Expression> =0> in CAS.

3.

Press Solve  or Solve Numerically  to find the zeros.

Algebra View and Graphics View

1.

Open Algebra View and Graphics View under  View in  Menu.

2.

Type your function into Algebra View and press Enter.

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.