100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Functions R155,00   Add to cart
Quickly navigate to
Preview
  2.  
  3. 9th Grade
  4.  
  5. Mathematics

Interview

Functions

 26 views  1 purchase

A document explaining functions (graphs) for all grade 9 students. There are notes on the topic; all the different questions they could ask you. There are worked examples as well as questions and a memo so you can practice by yourself.

Preview 3 out of 17  pages

Document information

  • November 15, 2022
  • 17
  • 2022/2023
  • Interview
  • Unknown
  • Unknown

Subjects

Written for

All documents for this subject (94)

Seller

avatar-seller
Morgss

Content preview

•mWBᵈBogqGe functions •mWBᵈBogg%ao
9
In
grade we
only look at
straight line
graphs next year we


look for Linear
at more
types
but now
only graphs .




We need to remember 2 formulas :




Ya Y


]
-

,

Y mxtc
=




[
M =
x, -
× ,




¥am¥nef◦r general formula :



m is your
gradient
C where cuts
is the
graph your
y-axis




{wnww)
axis is which :




Y to the
is
sky




y -9×15




x-axis

, Gradient
changes :




positive gradient negative gradient




Horizontal
graphs
:




y =


eg
.




5
< >
y=5
°
< >
y
• :O
-2
>
<
y = -2




vertical
graphs
:




✗ =




✗= -
l x :O
ax 7
=
a a



7
-
,




r
v v

, How to find the formula :


i




42 -

Yi *
NB : the smaller the
gradient the

Mx + C M =

y
flatter
= the
graph ,
the
bigger
✗z -
x,
the
gradient the steeper the


graph

steps :

example 1 :


1 Choose
any 2 pts .
label them pt . I É pt 2
.




/
°
X, Y ,


" " " " [ " " " " " "




Xz 42
( -2 ; 1) -
→ pt . 2


2 Now lets find
◦

C- 2 ;
the
gradient
-
1)
yz -
Yi
M =
✗z -
Xi

(2)




n÷÷÷÷g:
C- 1) -




É÷÷÷÷÷
=
7
( -

2) -
( l )




I ;÷:÷ˢn
.
L
=
3
-




we
-

3
are
happy with a
positive

=
,
and label them cod y 't -




3 Now find ordinate
we have to C
by subbing in
any co -

.




lets use pt
§
.




Y = Mx + c m = , ( 1 ; 2)
SO ✗ =\
(2) =
(1) + c y=z

2 =
I + C




2 I
-


= C




C = I




i. 1×+1
y
=

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying this summary from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Morgss. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy this summary for R155,00. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

58993 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy summaries for 14 years now

Start selling
R155,00  1x  sold
  • (0)
  Buy now