Examine Functions With Geogebra

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Intesection (et!een ga)"s

ame procedure as shown above. Alternativelyuse the command Intersect+f-g,.

GeoGebra will find the point of intersection!0 $/-66-4-78%

Fin*ing t"e y #+a,ue !"en t"e  x #+a,ue is gi+en9i will find the y #value when x  2

Type x2 in the input bar- and use the toolIntersect Two 1bects twice $to findboth intersection points%. GeoGebra finds: $2-6% between g  and the line x2- and; $2-<% between f  and the line x2.

The desired y #values are! y 6 og y <.

To find x #values- we ma3e a horisontal lineinstead of a vertical one. Try=

Ma'imum an* minimum of )o,&nomia, functionstraight lines hva no maximum or minimum. Therefore- we open a new window and draw

the graph of the function h  x =/.5 x 6−2 x 2

Type Turning&oint+h, in the input barand press enter. GeoGebra finds

maximum and minium $if they exist%.The function h have

(aximum A $#>->5-6-54%(inimum $>->5-/-47%

Dette verk av Jon Arild Jørgensen er lisensieret under en

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