1TTO §6.3 Linear formulas (part 1) PTI Apr24

• Wiskunde
• Middelbare school
• havo, vwo
• Leerjaar 1

§6.3 Linear formulas

In this Lesson 

+    linear graphs and 

+    linear formulas are dealt with

+    following it will make doing §6.3 easier

Homework

Do of §6.3 now: ex 18, 19, 20,21 and 22

1. make 2. correct it well

number of visits x 3 + 6 = amount

Statement 1:

The graph for this formula is a straight line.

St. 1: The graph is a straight line.

number of visits x 3 + 6 = amount

1. true
2. false

8

It is a straight line indeed,

as you see alongside.

- starting value

- gradient

number of visits x 3 + 6 = amount

Statement 2:

The roles that is played by the numbers 3 and 6 are about the same.

St. 2: The roles are almost the same.
(Explanation next slide.)

1. true
2. false

Above 

Above you clearly see that 6 and 3 play a completely different

role in the graph!

Important: (Remember!!!)

+   when a graph is a straight line it is called a LINEAR GRAPH

+   the formula of a linear graph is called a LINEAR FORMULA

Statement 3:

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

St. 3: The graph is a straight line.
(Explanation follows.)

1. false
2. true

Above you see that the graph is certainly no straight line.

By the way, this was from the previous paragraph.

 time x time + 1 = height 

If you got this wrong, study §7.2 once more!

Homework time

Do  of §6.3 now: ex 18, 19, 20,21 and 22

1. make  2. correct it well

Questions?