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Slide 1: Slide
WiskundeMiddelbare schoolvwoLeerjaar 3

This lesson contains 23 slides, with interactive quizzes and text slides.

## Items in this lesson

#### Slide 1 -Slide

Give the equation of this graph
timer
1:00

#### Slide 2 -Slide

Give the equation of the graph

#### Slide 3 -Open question

Give the equation of this graph

#### Slide 4 -Slide

Today
• Start lesson (10 min)
• 'New' subject (20 min)
• Work in Bettermarks (20 min)
• Question together (15 min)
• Work in Bettermarks (15 min)

#### Slide 5 -Slide

How do we call curved graphs?

#### Slide 6 -Open question

Give the coördinates of the vertex of the graph
timer
0:30

#### Slide 7 -Slide

Give the coördinates of the vertex

#### Slide 8 -Open question

Give the coördinates of the vertex of the graph

#### Slide 9 -Slide

Give the equation of the axis of symmetry
timer
0:30

#### Slide 10 -Slide

Give the equation of the axis of symmetry

#### Slide 11 -Open question

Give the equation of the axis of symmetry

#### Slide 12 -Slide

Give the coördinates of the zeroes in this parabola
timer
0:45

#### Slide 13 -Slide

A curved graph is called a parabola.
Vertex: The lowest (or highest) point of the parabola
Axis of symmetry: The line passing through the vertex.
Zeroes: Where the parabola intersects the x-axis.

#### Slide 14 -Slide

Axis of symmetry:

y=ax2+bx+c
x=2ab

y=ax2+bx+c

Geogebra

#### Slide 17 -Slide

Bettermarks
• 20 minutes
• Bettermarks 12.1 and 12.2
• Raise your finger if you have any questions or when you're finished

x
-2,5
-2
-1,5
-1
-0,5
0
0,5
1
1,5
2
y
y=2x2+4x3

x
-2,5
-2
-1,5
-1
-0,5
0
0,5
1
1,5
2
y
y=2x2+4x3
y=2(1.5)2+41.53

x
-2,5
-2
-1,5
-1
-0,5
0
0,5
1
1,5
2
y
y=2x2+4x3
y=2(1.5)2+41.53
y=4.5

x
-2,5
-2
-1,5
-1
-0,5
0
0,5
1
1,5
2
y
-4,5
y=2x2+4x3
y=2(1.5)2+41.53
y=4.5

#### Slide 22 -Slide

Finding the axis of symmetry
f(x)=x2+3x2