# 1TTO §6.3 Linear formulas PTI Apr24

§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

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.

#### Slide 5 -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 6 -Slide

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

#### Slide 7 -Quiz

Above
Above you clearly see that 6 and 3 play a completely different
role in the graph!

#### Slide 8 -Slide

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 9 -Slide

Statement 3:
The graph that corresponds to this formula is a straight line.

#### Slide 10 -Slide

St. 3: The graph for:
time x time + 1 = height
is a straight line.
(Explanation follows.)
A
false
B
true

#### Slide 11 -Quiz

Above you see that the graph is certainly no straight line.
By the way, this formula and graph are very similar to exercise 14  from paragraph 6.2!
time x time + 1 = height
If you got this wrong, study §6.2 once more!

#### Slide 12 -Slide

Homework time
Do §6.3 now,
1. make  2. correct