# 1819 H2Y §7.6

Which exercises should we discuss on the board?
1 / 14
Slide 1: Woordweb
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In deze les zitten 14 slides, met interactieve quiz en tekstslides.

Lesduur is: 50 min

## Onderdelen in deze les

Which exercises should we discuss on the board?

#### Slide 1 -Woordweb

Recap: Factor
A factor is the number you multiply an original amount with, to get the new amount.

You should be able to calculate the factor for a given increase/decrease in percent and also the other way around.
Drawing a diagram can help!

Recap: Factor

Recap: Factor

Recap: Factor

#### Slide 5 -Tekstslide

Recap: Exponential formulas
A table or graph shows exponential growth if the bottom row/vertical variable is multiplied by the same number everytime the top row/horizontal variable increases by 1.

An exponential formula has the form
b is the initial amount, the value of y when x = 0
g is the growth factor, the number you multiply with.
y=bgx

#### Slide 6 -Tekstslide

Recap: Exponential formulas

#### Slide 7 -Tekstslide

Recap: Growth factor
If the growth factor is between 0 and 1,
the graph is decreasing.

If the growth factor is 1,
the graph is constant

If the growth factor is more than 1,
the graph is increasing.

#### Slide 8 -Tekstslide

Recap: Standard notation
A number is standard/scientific notation is a number between 1 and 10 multiplied with a power of 10.

The power of 10 tells you how many places you should move te decimal point to the right (positive power) or to the left (negative powers).

You should be able to write normal numbers in standard notation and the other way around.

#### Slide 9 -Tekstslide

Recap: Standard notation
Write these numbers in standard notation. Round the first number to two decimal places.

#### Slide 10 -Tekstslide

Recap: Standard notation
Write these numbers in standard notation. Round the first number to two decimal places.

#### Slide 11 -Tekstslide

Recap: Standard notation
Write these numbers in normal notation.

#### Slide 12 -Tekstslide

Recap: Standard notation
Write these numbers in normal notation.

#### Slide 13 -Tekstslide

HW Tuesday
Make and correct §7.6 (NOT 46, 50)
Bring your workbook for the practice test.