Question 1

Welke van deze formules zijn lineair? $\begin{array}{l}k:y=\frac{1}x+4 \l:y=4x+11 \ m:y=x^2-5 \ n: y=-\frac{3}{4}x\end{array}$

Accepted Answer

l en n

Answer

k en l

Answer

k,l en m

Answer

k,l en n

Question 2

Bij welke formule hoort deze tabel?

Accepted Answer

$y=2x+3$

Answer

$y=-\frac{1}{2}x+3$

Answer

$y=-x+3$

Answer

$y=-x$

Question 3

Welke formule hoort bij lijn $l$ ?

Accepted Answer

$y=-\frac{1}{2}x+2$

Answer

$y=-2x+\frac{1}{2}$

Answer

$y=\frac{1}{2}x+2$

Answer

$y=-2x+2$

Question 4

Welke formule hoort bij lijn $m$ ?

Accepted Answer

$y=-2x+4$

Answer

$y=2x-4$

Answer

$y=-2x-4$

Answer

$y=-4x+2$

Question 5

Welke van deze formules zijn evenwijdig? $\begin{array}{l}k:y=\frac{1}{4}x+4 \l:y=4x+4 \ m:y=4x-5 \ n: y=-\frac{1}{4}x-5\end{array}$

Accepted Answer

$l$ en $m$

Answer

$m$ en $n$

Answer

$k$ en $l$

Answer

$k$ en $n$

Question 6

Welke lijn $m$ loopt evenwijdig aan $l:y=5x-7$ en gaat door $A(4,9)$

Accepted Answer

$m:y=5x-11$

Answer

$m:y=5x+2$

Answer

$m:y=5x+9$

Answer

$m:y=4x+9$

Question 7

Los op: $-6a+18=60$

Accepted Answer

$\begin{array}{l} -6a=42 \a=-7\end{array}$

Answer

$\begin{array}{l} -6a=78 \a=-13\end{array}$

Question 8

Los op: $7x-15=5x+5$

Accepted Answer

$x=10$

Answer

$x=20$

Answer

$x=4$

Answer

$x=-5$

Question 9

Los op:  $17-x=-9+x$

Accepted Answer

$x=13$

Answer

er is geen oplossing

Answer

$x=-4$

Answer

$x=0$

Question 10

Los op: $4x+2x=x+7$

Accepted Answer

$x=\frac{7}{5}$

Answer

$x=1$

Answer

$x=-1$

Answer

$x=\frac{5}{7}$

Question 11

Los op: $-3(a-2)=2(a+10\frac{1}{2})$

Accepted Answer

$a=-3$

Answer

$a=-\frac{27}{5}$

Answer

$a=-27$

Answer

$a=-5\frac{2}{5}$

Question 12

Wat is de volgende stap bij het oplossen van $\frac{1}{2}x-\frac{1}{3}=\frac{1}{4}x+2$

Accepted Answer

$6x-4=3x+24$

Answer

$3x-6=4x+24$

Answer

$\frac{6}{12}x-\frac{4}{12}=\frac{3}{12}x+24$

Question 13

Wat is de volgende stap bij het oplossen van $\frac{1}{2}(\frac{1}{5}x+7)=\frac{3}{4}(x-4)$

Accepted Answer

$\frac{1}{10}x+3\frac{1}{2}=\frac{3}{4}x-3$

Answer

$10(4x+140)=15(x-4)$

Answer

$10(4x+140)=15(20x-80)$

Question 14

Bereken $\sqrt{0,04}$

Accepted Answer

$0,2$

Answer

$0,02$

Answer

$0,0002$

Question 15

Bereken $\sqrt{8^2+6^2}$

Accepted Answer

$10$

Answer

$14$

Answer

$\sqrt{28}$

Question 16

Bereken zonder rekenmachine:  $\sqrt{7\frac{1}{9}}$

Accepted Answer

$2\frac{2}{3}$

Answer

$7\frac{1}{3}$

Answer

Kan helemaal niet zonder rekenmachine

Answer

$\frac{8}{9}$

Question 17

Bereken zonder rekenmachine $\sqrt{\frac{3}{75}}$

Accepted Answer

$\frac{1}{5}$

Answer

Kan niet zonder rekenmachine

Answer

Blijft $\sqrt{\frac{3}{75}}$

Answer

$\frac{1}{25}$

Question 18

De juiste stelling van Pythagoras voor deze driehoek is:

Accepted Answer

$KM^2+LM^2=KL^2$

Answer

$KL^2+LM^2=KM^2$

Answer

$KM^2	imes LM^2=KL^2$

Answer

$KL^2+KM^2=LM^2$

Question 19

De juiste stelling van Pythagoras voor deze driehoek is:

Accepted Answer

$DE^2+EF^2=DF^2$

Answer

$DF^2	imes EF^2=DE^2$

Answer

$DE^2+DF^2=DE^2$

Answer

$DF^2+DE^2=DE^2$

Question 20

Bereken zijde DE in 1 decimaal nauwkeurig

Accepted Answer

$DE=\sqrt{15}=3,9$

Answer

$DE=\sqrt{17}=4,1$

Answer

$DE=\sqrt{5}=2,2$

Answer

$DE=\sqrt{3}=1,7$

Question 21

Lichaamsdiagonaal $EC$ ligt in diagonaalvlak

Accepted Answer

$ACGE$ en $EFCD$

Answer

$EHFC$ en $EFCD$

Answer

$ACGE$ en $DHEC$

Answer

$ABGH$ en $ACGE$

Question 22

De $bach$-stelling is voor deze driehoek:

Accepted Answer

$AC 	imes BC = AB 	imes CD$

Answer

$AC + AD = BD + BC$

Answer

$AB 	imes BC = AC 	imes CD$

Answer

$AD 	imes BD = CD 	imes CD$

Question 23

Bereken $CD$

Accepted Answer

$CD=\frac{12}{5}$

Answer

$CD=\frac{15}{4}$

Answer

$CD=\frac{7}{5}$

Answer

$CD=\frac{20}{3}$

Question 24

De hpq-stelling voor deze driehoek is

Accepted Answer

$CD^2=AD 	imes BD$

Answer

$CD^2=AD + BD$

Answer

$AC 	imes CD=BC 	imes CD$

Answer

$AD 	imes CD=BD 	imes CD$

Question 25

Bereken $RT$

Accepted Answer

$RT=2,5^2:2=3,125$

Answer

$RT=5:2=2,5$

Answer

$RT=2,5^2 : 2^2=1,5625$

Answer

$RT=2,5:2^2=0,625$

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