3.0 & 3.1 prior knowledge & graph from a linear function

• Wiskunde
• Middelbare school
• vwo
• Leerjaar 2

Learning goals

I am able to draw the graph given a linear function.

I understand what a linear equation is.

Consider the function y = 1.5x - 1
Calculate y for x = 4

What does this mean?

So, for function y = 1.5x - 1 
if x = 4 then y = 5

numberCupid

What does this mean?

So, for function y = 1,5x - 1 
if x = 4 then y = 5

Also written as (4, 5)

Consider the function y = 1.5x - 1
Calculate y for x = 0

Consider the function y = 1.5x - 1
Calculate y for x = -4

Now they're in a table!

Now they're in a graph.

Consider that it doesn't matter which pair of points you use to draw the line, you always end up with the same line.

Now they're in a graph :o.

Do you think you could draw such a graph yourself?

Yass!

Yes, with a little help from a friend

Not yet.

I am able to draw the graph given a linear function.

Not yet

A little

A lottle

100%