Quiz square roots & root formulas (t2a)

• Wiskunde
• Middelbare school
• vwo
• Leerjaar 1

Quiz rules

• Camera is ON and shows most of your hands and face
• Your phone and books are NOT in your room
• Your quiz version can be found at 12:30 in
    Teams --> Assignments --> (Hand in) quiz square roots
• Done? Ask permission in chat to get your phone for pictures
  
• You have until 12:50 to hand in your quiz. It closes at 12:55!
• Oral justifications for cases of doubt

Formulas with square roots

March 10th, 2021

t2a

12:05

Cameras ON

y=√​x​​​

Schedule

• Quiz                                                                   max 30 min
• Formulas with square roots                             15 min
• Practice                                                                     15 min
    Wrap-up

Programme

Grading

• Statistics Project: 0.75
• Quiz square roots: 0.25

Intended Learning Outcomes

At the end of the lesson you can...

• Work out brackets with square roots in them
• Do all sorts of calculations with square roots

What is the graph of a quadratic formula called again?

1. Linear graph
2. Hyperbola
3. Parabola
4. Curving graph

You know two things:
- The shape of the graph of a quadratic formula
- A square root is the 'opposite' of a square
With that in mind, describe what you think the
graph of the formula on the right would look like.

y=√​x​​​

Let's build the graph

y=√​x​​​

www.geogebra.org/graphing

What will the graph of thís formula look like then?

y=−√​x​​​

1. A normal parabola again
2. A line
3. The same half sideways parabola, but going left instead of right
4. The same half sideways parabola, but going down instead of up

Explain why the following statement is/isn't true:

is the same as

y=3√​16x​​​

y=12√​x​​​

True or not true?

is the same as

y=4+√​9x​​​

y=7√​x​​​

1. True
2. Not true

Practice

Chapter 4:

Do 62, 63 and 64 ór 65

Do 66 and 68