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Wiskunde samenvatting hoofdstuk 1 formules, grafieken en vergelijkingen

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Dit is een samenvatting van het eerste hoofdstuk van wiskunde. Alles is uitgewerkt met een stappenplan zodat het elke keer heel duidelijk wordt waarom iets gedaan wordt en wat er gedaan moet worden.

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Institution
Secondary school
Level
Course
School year
4

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Summarized whole book?
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Which chapters are summarized?
1 formules, grafieken en vergelijkingen
Uploaded on
December 14, 2021
Number of pages
3
Written in
2020/2021
Type
Summary

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Wiskunde samenvatting hoofdstuk 1
Voorkennis:
Lineaire vergelijkingen ( 6x - 8 = 2x - 7)
1. Haal de haakjes weg.
2. Breng alle termen met x naar de linkerhelft.
3. Breng de rest naar de rechterkant.
4. Herleid beide kanten.
5. Deel beide kanten door het getal wat voor de x staat.

Eerst de breuken wegwerken en dan de haakjes.

Lineaire ongelijkheid ( 6x - 2 < 4x + 5 )
1. Werk de breuken weg.
2. Werk de haakjes weg.
3. Breng alle termen met x naar de linkerkant.
4. Breng alle andere termen naar de rechterkant.
5. Herleid beide kanten.
6. Deel beide kanten door het getal dat voor de x staat.
7. Is dat getal negatief moet je het teken < of > omdraaien.

Ontbinden in factoren:
3x2 + 6x
= 3x (x + 2)

Kwadratische vergelijkingen oplossen:
x2 - 8x + 15 = 0
(x - 3)(x - 5) = 0
x-3=0vx-5=0
x=3vx=5

Paragraaf 1.1:
y = ax + b
➔ a ⇒ rc, 1 naar rechts is a omhoog.
➔ Lijnen met dezelfde rc ⇒ evenwijdig.
➔ Snijpunt y-as: x = 0
➔ Snijpunt x-as: y = 0

Δy
a = rc =
Δx
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