# 1TH/vwo §6.3 Linear formulas

§6.3 Linear formulas
In this Lessonup
+    linear graphs and
+    linear formulas are dealt with

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Slide 1: Slide
WiskundeMiddelbare schoolhavo, vwoLeerjaar 1

This lesson contains 13 slides, with interactive quizzes and text slides. Lesson duration is: 50 min

## Items in this lesson

§6.3 Linear formulas
In this Lessonup
+    linear graphs and
+    linear formulas are dealt with

#### Slide 2 -Slide

Formula:      number of visits x 3 + 6 = amount
Statement 1:
The graph for this formula is a straight line.

#### Slide 3 -Slide

St. 1: This graph is a straight line.
A
true
B
false

#### Slide 4 -Quiz

8
It is a straight line indeed,
as you see alongside.

Time for a joke.

#### Slide 6 -Slide

number of visits x 3 + 6 = amount
Statement 2:
The roles that is played by the numbers 3 and 6 are the same.

#### Slide 7 -Slide

St. 2: The roles are the same.
(Explanation next slide.)
A
true
B
false

#### Slide 8 -Quiz

It will be clear by now that
the numbers 6 and 3
play a completely different role!

#### Slide 9 -Slide

Question:
What is the STARTING VALUE in this Formula?
ANS

#### Slide 10 -Slide

The STARTING VALUE IS ...
A
20
B
10

#### Slide 11 -Quiz

Important:
+   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 12 -Slide

Homework time
Do §6.3 now,
you may skip 16 and 18
1. make  2. correct   3.picture     4. send in in GC
By the way, this  §  isn't that much work. Only one graph to be drawn.
Lucky you!