1TH/vwo §10.1/2/3 PRACTICE !

Practice, practice, practice ......
§10.1   §10.1  §10.3
Before moving on with §10.4 it pays off to do some more exercises!

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WiskundeMiddelbare schoolhavo, vwoLeerjaar 1

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Practice, practice, practice ......
§10.1   §10.1  §10.3
Before moving on with §10.4 it pays off to do some more exercises!

Slide 1 - Diapositive

Shorten as much as you can:
y = 3 x f + 6
A
y = 3f + 6
B
3f + 6
C
y = 9f
D
y = 9 x f

Slide 2 - Quiz

Solution:
                                                          y = 3 x f + 6
The only thing you can do here is leave out the 'x' !
So:                                                   y = 3f + 6
Not  y = 9f, because 3f and 6 are NOT LIKE TERMS!

Slide 3 - Diapositive

a = 4b + 6c
A
a = 10bc
B
a = 4b + 6c
C
4b + 6c

Slide 4 - Quiz

Solution:
a = 4b + 6c
There is absolutely, sad as it might be, nothing you can do
about it....
It just stays the same. You cannot add up 'b-s' and 'c-s'.

Slide 5 - Diapositive

t = 6h + 4f and
4f + 6h = t mean the same.
A
false
B
true

Slide 6 - Quiz

Shorten this:
d = 5 -3t -6 + 5t
A
d = 1 + 2t
B
d = -1 -2t
C
d = -1 + 2t
D
d = 2t - 1

Slide 7 - Quiz

Solution:
d = 5 - 3t -6 +5t
Take together the LIKE TERMS:
d = 5 -6 -3t + 5t
d = -1 + 2t     or    d = 2t -1

Slide 8 - Diapositive

Calculate g when p = 6 in
g = 5p -6
A
-24
B
50
C
24
D
5

Slide 9 - Quiz

Solution:
g = 5p - 6
Replace the letter p (the VARIABLE) with the number 6 :
g = 5 x 6 - 6 
g = 30 -6
g = 24

Slide 10 - Diapositive

Let's freshen up your knowledge from §10.3 :

Slide 11 - Diapositive

Slide 12 - Diapositive

Slide 13 - Diapositive

Calculate
t = 8 -5 (4 - c) when c = 2
A
6
B
2
C
-6
D
-2

Slide 14 - Quiz

Solution:
Calculate t = 8 - 5(4 - c)   when  c = 2.
As follows:   replace the letter c with the number 2 :
t = 8 - 5(4 - 2)                   Now work out the brackets first:
t = 8 - 5 x 2   Do you see the RETURN of the 'x'- sign!?
t = 8 - 10  so
t = -2


Slide 15 - Diapositive

Done enough practice?
If so, then it's time to work on your own now!

Slide 16 - Diapositive

Homework time
Do:      
1st:   p.120 E1, E2 and E3
These exercises are all about §10.1, §10.2 and §10.3
2nd:   §10.3   Finish it (for today you only had to do the first half).       
Send in pics of your corrected homework in GC again.
Good luck!

Slide 17 - Diapositive

Slide 18 - Diapositive