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1TTO §7.3 Linear formulas (part 1)
§7.3 Linear formulas
less like me
In this Lessonup
+ linear graphs and
+ linear formulas are dealt with
+ following it will make doing §7.3 easier
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Slide 1:
Slide
Wiskunde
Middelbare school
havo, vwo
Leerjaar 1
This lesson contains
16 slides
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interactive quizzes
and
text slides
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Lesson duration is:
50 min
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§7.3 Linear formulas
less like me
In this Lessonup
+ linear graphs and
+ linear formulas are dealt with
+ following it will make doing §7.3 easier
Slide 1 - Slide
Given formula:
time in hours x 5 euros + 20 = salary,
The graph for this formula
Slide 2 - Slide
number of visits x 3 + 6 = amount
Statement 1:
The graph for this formula is a straight line.
Slide 3 - Slide
St. 1: The graph is a straight line.
A
true
B
false
Slide 4 - Quiz
8
It is a straight line indeed,
as you see alongside.
Slide 5 - Slide
number of visits x 3 + 6 = amount
Statement 2:
The roles that is played by the numbers 3 and 6 are about the same.
Slide 6 - Slide
St. 2: The roles are the same.
(Explanation next slide.)
A
true
B
false
Slide 7 - Quiz
Above
Above you clearly see that 6 and 3 play a completely different
role in the graph!
Slide 8 - Slide
Important: (Remember!!!)
+ when a graph is a straight line it is called a LINEAR GRAPH
+ the formula of a linear graph is called a LINEAR FORMULA
Slide 9 - Slide
Statement 3:
The graph that corresponds to this formula is a straight line.
Slide 10 - Slide
St. 3: The graph is a straight line.
(Explanation follows.)
A
false
B
true
Slide 11 - Quiz
Above you see that the graph is certainly no straight line.
By the way, this was from exercise 15, so from the previous paragraph.
time x time + 1 = height
If you got this wrong, study §7.2 once more!
Slide 12 - Slide
Homework time
Do of §7.3 now: ex 17, 19 and 20
1. make 2. correct it well
Slide 13 - Slide
Questions?
Slide 14 - Slide
Slide 15 - Slide
opdracht 18 inleveren
Slide 16 - Open question
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