Quadratic equations

Quadratic graphing
You need your Ipad, notebook, calculator
1 / 23
volgende
Slide 1: Tekstslide
WiskundeMiddelbare schoolvwoLeerjaar 3

In deze les zitten 23 slides, met interactieve quizzen en tekstslides.

Onderdelen in deze les

Quadratic graphing
You need your Ipad, notebook, calculator

Slide 1 - Tekstslide


Give the equation of this graph
timer
1:00

Slide 2 - Tekstslide

Give the equation of the graph

Slide 3 - Open vraag


Give the equation of this graph

Slide 4 - Tekstslide

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 - Tekstslide

How do we call curved graphs?

Slide 6 - Open vraag

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

Slide 7 - Tekstslide

Give the coördinates of the vertex

Slide 8 - Open vraag

Give the coördinates of the vertex of the graph

Slide 9 - Tekstslide

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

Slide 10 - Tekstslide

Give the equation of the axis of symmetry

Slide 11 - Open vraag

Give the equation of the axis of symmetry

Slide 12 - Tekstslide

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

Slide 13 - Tekstslide

Quadratic graphing
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 - Tekstslide

Quadratic graphing
Quadratic formula:

Axis of symmetry:


y=ax2+bx+c
x=2ab

Slide 15 - Tekstslide

Quadratic formula
y=ax2+bx+c

Slide 16 - Tekstslide

Geogebra

Slide 17 - Tekstslide

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

Slide 18 - Tekstslide

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

Slide 19 - Tekstslide

Quadratic formula
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

Slide 20 - Tekstslide

Quadratic formula
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

Slide 21 - Tekstslide

Quadratic formula
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 - Tekstslide

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

Slide 23 - Tekstslide