3Tvwo Ch 1 SUMMARY p.32-35

• Wiskunde
• Middelbare school
• vwo
• Leerjaar 3

Ch 1 Linear and exponential functions

The content for this lesson is:

p.32 -35  SUMMARY

 

Question:

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

Answer:

1. Linear functions

2.Exponential functions

Look how fast exponential growth goes!

or decreasing, of course:

Make a good start yourself now!

Let's be practical:

Question:

What materials do you need for the test?

Answer:

+ pen

+ pencil

+ eraser, pencil sharpener

+ geo triangle

+ Casio calculator

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!

Answer:

growth factor for 2 days is:

+ root 6 (can't find the right symbol...)

+ 2.449489....., which is rounded:

+  2.4

Question 2:

Now find the growth factor for one day!

Let's go back to the previous slide for this.

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    ??

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.

Work on for yourself.

Let's do it!