3Tvwo Ch 1 SUMMARY p.32-35

Ch 1 Linear and exponential functions
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p.32 -35  SUMMARY
 
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Slide 1: Tekstslide
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Ch 1 Linear and exponential functions
The content for this lesson is:
p.32 -35  SUMMARY
 

Slide 1 - Tekstslide

Question:
What two basic kinda functions did you work with in this chapter?

Slide 2 - Tekstslide

Answer:
1. Linear functions
2.Exponential functions

Slide 3 - Tekstslide

Look how fast exponential growth goes!

Slide 4 - Tekstslide

or decreasing, of course:

Slide 5 - Tekstslide

Make a good start yourself now!

Slide 6 - Tekstslide

Let's be practical:
Question:
What materials do you need for the test?

Slide 7 - Tekstslide

Answer:
+ pen
+ pencil
+ eraser, pencil sharpener
+ geo triangle
+ Casio calculator

Slide 8 - Tekstslide

A fine point about calculating a growth factor(this will be in the Test, too!):
Question 1: If the growth factor for 4 days is 6, then what is the growth factor for 2 days?
Take your Casio, calculate and give your answer 
+  exact and also 
+  rounded to 1 decimal!

Slide 9 - Tekstslide

Answer:
growth factor for 2 days is:
+ root 6 (can't find the right symbol...)
+ 2.449489....., which is rounded:
+  2.4

Slide 10 - Tekstslide

Question 2:

Now find the growth factor for one day!
Let's go back to the previous slide for this.

Slide 11 - Tekstslide

Question:What is the best answer?
1st:   The growth factor for one single day is
root 2.4 = 1.549193338....,    or

2nd:       root   2.449489 = 1.565084343    ??

Slide 12 - Tekstslide

Answer:
The 2nd answer is the best,
because now you work with the not rounded answer to root 6!
Let us look back again to the previous slide.

Slide 13 - Tekstslide

Work on for yourself.

Slide 14 - Tekstslide

Let's do it!

Slide 15 - Tekstslide