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2-4 The shape of a parabola
2-4 The shape of a parabola
(p42)
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Slide 1:
Diapositive
Wiskunde
Middelbare school
havo
Leerjaar 3
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2-4 The shape of a parabola
(p42)
Bluetooth
- ON
- VPN off
Stationary
- Writing book
- Pen, pencil
- Calculator
- iPad
Report
- NO
Lessonup
- Yes
Bags
in
the cuboard
Phones
in the phone bag
Slide 1 - Diapositive
Determine the factor when there is exponential growth.
Determine the formula if you have the table for exponential growth between two variables.
Identify the shape of a parabola based on the number in front of the x
2
(or the a value), and c value
Slide 2 - Diapositive
Slide 3 - Diapositive
Slide 4 - Diapositive
IA
Slide 5 - Diapositive
27a
A
up, narrower
B
up, wider
C
down, narrower
D
down, wider
Slide 6 - Quiz
27b
A
up, narrower
B
up, wider
C
down, narrower
D
down, wider
Slide 7 - Quiz
27c
A
up, narrower
B
up, wider
C
down, narrower
D
down, wider
Slide 8 - Quiz
27d
A
up, narrower
B
up, wider
C
down, narrower
D
down, wider
Slide 9 - Quiz
27e
A
up, narrower or same
B
up, wider or same
C
down, narrower or same
D
down, wider or same
Slide 10 - Quiz
27f
A
up, narrower
B
up, wider
C
down, narrower
D
down, wider
Slide 11 - Quiz
Solution Q27
Slide 12 - Diapositive
Slide 13 - Diapositive
Solution Q28
Slide 14 - Diapositive
Slide 15 - Diapositive
Slide 16 - Diapositive
Slide 17 - Diapositive
29a
A
1
B
3
C
5
D
2
Slide 18 - Quiz
29b
A
4
B
3
C
2
D
5
Slide 19 - Quiz
29c
A
3
B
5
C
4
D
2
Slide 20 - Quiz
29d
A
1
B
3
C
5
D
2
Slide 21 - Quiz
29e
A
5
B
2
C
6
D
4
Slide 22 - Quiz
29f
A
4
B
1
C
5
D
6
Slide 23 - Quiz
Solution Q 29
Slide 24 - Diapositive
Conclusion:
- If the numer in front of the a is positive, it is an upward opening graph, and if it is negative it is a downward opening graph.
- The greater the value of a, the
steeper/ narrower the parabola
- The c value of the graph indicates the y intercept
y
=
a
x
2
+
b
x
+
c
Slide 25 - Diapositive
Try on your own
1, 2, 5 and 7
TRY ON YOUR OWN
30 (p. 43)
RULES:
In your writingbook
Use: Textbook
Discussion when you are stuck is allowed
timer
6:00
Extra excercise:
(p. 54)
Challenge:
(p. 56)
Slide 26 - Diapositive
Slide 27 - Diapositive
Slide 28 - Diapositive
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