3.2A relationships

• Wiskunde
• Middelbare school
• vwo
• Leerjaar 2

How are you doing today?

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Learning goals

You know what the word 'relationship' means in mathematical context.

You are able to find a formula for a relation between x and y described by words.

Read together

Let's read page 88 with random students.

Raise your hand when you have a question/don't know the word.

In the formula y = x - 3, which is true?

1. x is always greater than y
2. y is always greater than x

In the formula y = x - 3, which is true?

1. x depends on y
2. y depends on x

In the formula y = x - 3, which is true?

1. For x = 1, y = 4
2. For x = 1, y = -3
3. For x = 1, y = -2

Drag the formulass to the matching relationships.

The x- and y-coordinates are equal.

the x coordinate is equal to half the y coordinate

The x-coordinate is one unit greater than the y-coordinate.

the y coordinate is equal to half the x coordinate

y = x

x - 1 = y

y / 2 = x

x / 2 = y

Think of a new relationship between x and y and describe it with both words and a formula. Keep it simple :)

Do you think you could work with the relationships and formulas now?

Yass!

Yes, with a little help from a friend

Not yet.

The homework for next class is:
Chapter 3: assignments 22-28

Write this in your Plenda now.

Get started on the homework.

Write your answers in your notebook.

Write using a pen, draw using a pencil.

Done early? Explore & Investigate!

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

Not yet

A little

A lottle

100%