3Tvwo §7.6 Mixed exercises

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§7.6 Mixed exercises

In this § you will practice most that you learnt in Chapter 7 

Quadratic functions.

But first we look back at §7.5 !

§7.5 was about 'making quadratic formulas'....

+  So, let's do exercise 31, making 3 Formulas from Graphs!

+ In the last lesson, we already decided on the FORM of the Formula for 31!

You may have forgotten this. So first we look back at:

'3Tvwo §7.5 Functions for parabolas';  slides 22 - 28 !

On scrap paper make the 1st function now!

31 Solution 1st Formula:

On scrap paper make the 2nd function now!

Solution 2nd Formula:

On scrap paper make the 3rd function now!

Solution 3rd Formula(in 2 slides!):

part 1:

3rd Formula part 2:

Everything clear about Making Formulas from Graphs?

Remember that...

+ if not, then can just look up 31 in the Solutionsbook,

+ or first Study the Method on p.253, §7.5.

Homework time.

Later we will have a short continuation of this LessonUp.

Let's pause for a good cause.

+ Is there any question about any exercise? Tell me and I will help out.

+ Math A/B ! See next slide.

Math A or B.

Exercises B39, B40 and B41 are meant to give you a good idea of what Math B, in 4th Form and higher, will be like!

So do these tasks seriously too and consider:

are these 'my type of exercises'?!

Note: B39 is not difficult, so I would rather call it: A39.

Looking back and looking up...

This chapter has quite some content.

Different ways to handle different situations.

That's why it is important to:

LOOK UP WHAT YOU FORGOT, IN THE EARLIER PARAGRAPHS!

Homework for....

+  Classroomers:  §7.6 All exercises, except B40 and B41. 

     So also B39 (, which really should be called A39,

     because it is pretty simple!)

+  Studysquarers: §7.6, all exercises except B39

Homework time.

Remember...

Homework might be fun, but:

little homework is even more fun!

So: work hard on it!

What did you learn this lesson?