2TH §11.4 AxB=0 (part 2)

What will we do today...
  • §11.4 part 2
  • Discuss S33 from the homework
  • Together: exercise 32
  • Homework: 33, 34 and C7
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Slide 1: Tekstslide
WiskundeMiddelbare schoolvwoLeerjaar 2

In deze les zitten 18 slides, met interactieve quiz en tekstslides.

time-iconLesduur is: 50 min

Onderdelen in deze les

What will we do today...
  • §11.4 part 2
  • Discuss S33 from the homework
  • Together: exercise 32
  • Homework: 33, 34 and C7

Slide 1 - Tekstslide

Slide 2 - Tekstslide

S33

Slide 3 - Tekstslide

S33

Slide 4 - Tekstslide

What's the connection between.........

1st:       Solving quadratic equations, and
2nd:     Graphs of quadratic formulas (parabolas)

By doing 32 together, you will learn to do the 2nd half of the paragraph.

Slide 5 - Tekstslide

TASK 2:

+ Think about it for a while.

timer
0:20

Slide 6 - Tekstslide

Solution TASK 2: 

Slide 7 - Tekstslide

TASK 3:
a. Think about this for yourself.
b. Compare your answer with your neigbors.

timer
1:00

Slide 8 - Tekstslide

TASK 3:

Solution:

In the next slide, this equation will be solved.

Slide 9 - Tekstslide

TASK 4:
1. Copy the equation in your Notebook and
2. Factorise it.

If you forgot how to Factorise a Trinomial,
look it up on p.179: Method!
timer
1:00

Slide 10 - Tekstslide

TASK 4:

SOLUTION:

Slide 11 - Tekstslide

TASK 5:        
Make this task in your Notebook.
To refresh your memory:
at 32a we saw that the graph intersects the x-axis at x = -1 and x = 2.
Do you now get the same outcomes?!
timer
1:00

Slide 12 - Tekstslide

TASK 5:        
SOLUTION on the right: 
(Do you remember that we found
the same outcome with the graph?)

Next comes
a bit of Theory,
summarising all this!  

Slide 13 - Tekstslide

Slide 14 - Tekstslide

TASK 6:            
This is a FOTOVRAAG !
+ Do 33a in your Notebook
+ Take a picture of your work
+ Send it in, in the next slide and
+ We get a collection of your Solutions!

Slide 15 - Tekstslide

33a:

For which values of x does the graph intersect the x-axis?
y=x2+3x18
timer
2:00

Slide 16 - Open vraag

Solution TASK 6:

                                or
x2+3x18=0
(x+6)(x3)=0
X+6=0
x3=0
x=6
x=3
x+6=0

Slide 17 - Tekstslide

Homework - 11.4 part 2
§11.4    A x B = 0
Do exercises: 33, 34 and C7
1. Do it                
2. Correct it with the Solutions book
3. Send in your results in Classroom

Slide 18 - Tekstslide