Exam (elaborations)
Wiskunde b antwoorden oefentoets hoofdstuk 2 veranderingen
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Dit zijn de antwoorden van de oefentoets van hoofdstuk 2 hiermee kan je dus de oefentoets nakijken!
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HAVO B DEEL 1 CORRECTIEVOORSTEL OEFENTOETSHOOFDSTUK 2 VERANDERINGEN
CORRECTIEVOORSTEL TOTAAL 70P
OPGAVE 1 TOTAAL 17P
4p a afnemend stijgend op 1p
toenemend dalend op 1p
afnemend dalend op 1p
toenemend stijgend op 1p
4p b De toenamen zijn 0,8; −0,6; −1,2; −1,0; −0,4 en 0,9 2p
ΔP
1 2p
3p c
0,5
8 12 16 20
4 24 t
−0,5
−1
2p
de gemiddelde verandering is −0,25 dollar per uur 1p
2p d om 12 uur, want dan overgang van toenemend dalend naar
afnemend dalend 2p
4p e invoeren van 1p
2p
de olieprijs neemt af met 17 dollarcent (per vat) per uur 1p
OPGAVE 2 TOTAAL 16P
3p a om 2 uur 's middags 70 + 30 − 20 = 80 1p
om 10 uur 's morgens 70 + 65 + 10 = 145 2p
4p b
t 8 9 10 11 12 13 14 15 16
14 10
N 50 105 135 70 80 65 40
5 0
© NOORDHOFF 2015 CORRECTIEVOORSTEL OEFENTOETS HAVO B DEEL 1 HOOFDSTUK 2
1
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