# 1TH/Vwo §7.5 Comparing graphs PART ONE

§7.5 Comparing graphs
This is only PART ONE ... (as in famous Movies)
So there's more to come ...
in the next lesson!

1 / 19
Slide 1: Tekstslide
WiskundeMiddelbare schoolhavo, vwoLeerjaar 1

In deze les zitten 19 slides, met interactieve quizzen en tekstslides.

Lesduur is: 50 min

## Onderdelen in deze les

§7.5 Comparing graphs
This is only PART ONE ... (as in famous Movies)
So there's more to come ...
in the next lesson!

#### Slide 1 -Tekstslide

§7.5 Comparing graphs - Lesson 1: 32, 33 and 34
This paragraph is done in 2 lessons, because it contains quite a lotta content.
Let's start doing exercise 32 in a little different way from the book.

exercise 32

#### Slide 3 -Tekstslide

exercise 32
Because 2 graphs are drawn in 1
coordinate system,
we can COMPARE them!

#### Slide 4 -Tekstslide

exercise 32
After how many days is the price
you pay at Praxis
the same as at Finefix?
Key in in next slide.

#### Slide 5 -Tekstslide

After how many days is the price
you pay at Praxis
the same as at Finefix?

#### Slide 6 -Open vraag

exercise 32
If you hire a car for 2 days, what is
cheapest?

#### Slide 7 -Tekstslide

For 2 days ....
A
better choose for Praxis
B
it depends
C
better choose for Finefix
D
doesn't matter

#### Slide 8 -Quizvraag

Explanation exercise 32,
If you hire a car for 2 days, what is
the cheapest?
1. Go to '2 days' on the horizontal axis.
2. Go up and see which graph is highest.
3. Well, Finefix' graph lies lower,
4. so Finefix is cheapest for 2 days!

#### Slide 9 -Tekstslide

exercise 32
If you hire a car for 5 days,
which company is cheapest then?
Key in in next slide.

#### Slide 10 -Tekstslide

For 5 days ...
A
Praxis is cheapest.
B
Doesn't matter.
C
Finefix is cheapest.
D
idk

#### Slide 11 -Quizvraag

Explanation exercise 32,
If you hire a car for 5 days,
which company, which is cheapest?
Go to 5 days on the horizontal axis.
Go up and see which graph lies lowest.
Praxis' graph is lowest for 5 days,
so then the price is lowest too!

#### Slide 13 -Tekstslide

exercise 32
Which graph has a fixed amount?

#### Slide 14 -Tekstslide

A fixed amount ...
A
Graph for Praxis has one.
B
No clue at all.
C
Graph for Finefix has one.
D
Both graphs have one.

#### Slide 15 -Quizvraag

Explanation exercise 32,
Which graph has a fixed amount?
The graph for Praxis starts at 10 euros.
That's what you have to pay before you have used
this carpet cleaner for even one minute!
That's why we call this a FIXED AMOUNT.
The amount is fixed, no matter how long you use it.

#### Slide 16 -Tekstslide

In this lesson you have learned .....
I'd much better ask you, what you've learned!
Think of a 'general description' (=algemene beschrijving) for this.
So do not mention all tasks but try to summarise the content shortly in a few words.

#### Slide 17 -Tekstslide

I have learnt ...

#### Slide 18 -Woordweb

Homework time
Now make 33, 34  plus:
p.225  S34  and  S36,       or    C7  and  C8    (So all make 4 exercises.)
- correct with Solutionsbook
- take some pics and
- send in the lot in GC