Räta linjen - intro: Skillnad mellan sidversioner

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=== Sidorna 204-208 ===
== Andra ställen att öva grunderna i räta linjen ==


onsdag
* [http://www.matteboken.se/lektioner/matte-3-och-c/polynom-och-ekvationer/rata-linjens-ekvation matteboken]
* [http://olleh.se/start/frageprogramMa2.php OlleH]


=== Klurig läxa ===
=== Klurig läxa ===


[[Kluring_läxa:_Tristan_och_Isolde|Tristan och Isolde]]
[[Kluring_läxa:_Tristan_och_Isolde|Tristan och Isolde]]

Versionen från 9 april 2013 kl. 20.40

Räta linjens funktion

Repetition: Förra gången stiftade vi bekantskap med en parabel som naturligtvis låter sig ritas i GeoGebra. En av kurvorna är precis den som kommer ur bokens Exempel 1 på sidan 197.

Man kan naturligtvis rita kurvan i Wolfram Alpha oxå. Det är bara att högerlicka på uttrycket i GeoGebra och kopiera till inmatningsfältet. Wolfram Alpha finns förresten som en Gadget till er som har Vistra eller 7:an.

Här kommer en grafisk lösning till exempel 2 på sidan 206 (GeoGebra):

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Andra ställen att öva grunderna i räta linjen

Klurig läxa

Tristan och Isolde