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2TTO 1.2 Formulas for straight lines PTI 22-23
Today:
§1.2 Formulas for straight lines
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Slide 1:
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Wiskunde
Middelbare school
havo, vwo
Leerjaar 2
This lesson contains
26 slides
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interactive quizzes
and
text slides
.
Lesson duration is:
45 min
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Items in this lesson
Today:
§1.2 Formulas for straight lines
Slide 1 - Slide
om 21.22.41
Schermafbeelding 2021-07-28 om 21.23.01
Slide 2 - Slide
You will also learn:
Slide 3 - Slide
video
Slide 4 - Slide
I'm afraid these goals won't make anything clear yet,
so let's just start with an exercise!
Slide 5 - Slide
First of all...
take before you:
- pencil, geo and eraser
- Textbook 2A p.14/15
- Notebook
Slide 6 - Slide
Use the right materials for this task:
a pencil for the table and a pen for the numbers!
Slide 7 - Slide
Solution:
Slide 8 - Slide
Now do 9b:
Again use the right stuff:
a pencil and a geo!
Slide 9 - Slide
Solution:
Slide 10 - Slide
Think about these questions and try to solve them:
Slide 11 - Slide
Solutions 9c + 9d:
Slide 12 - Slide
Slide 13 - Slide
Slide 14 - Slide
Slide 15 - Slide
Task:
Make a linear formula for a Rising Graph.
So use this shape:
y = ax + b
(You have to find suitable numbers for a and b yourself.)
ANS
Slide 16 - Slide
A formula for a rising graph:
Slide 17 - Mind map
Solution:
A rising graph, so the number for the letter a in
y = ax + b
has to be positive!
For example: y = 3x -6
Slide 18 - Slide
The graph for y = 6 -4x
is a ....... graph.
A
rising
B
falling
C
horizontal
D
vertical
Slide 19 - Quiz
y = 6 -4x has a
Falling Graph, because of the number -4, that stands for
the letter a in the general shape:
y = b + ax
( y = ax + b and y = b + ax come down to the same thing!)
Slide 20 - Slide
Homework
Slide 21 - Slide
1.4 Making linear formulas
Slide 22 - Slide
Slide 23 - Slide
Example page 23
Slide 24 - Slide
What if..... ther y-intercept isn't clear
Slide 25 - Slide
Slide 26 - Slide
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