1
00:00:00,000 --> 00:00:03,293
Cause something is off about your line
because it is not passing through that point.

2
00:00:03,293 --> 00:00:07,453
[cause like Ryan explained why it maybe
negative 5] Okay so

3
00:00:07,453 --> 00:00:09,480
you explain to me why it may
be a negative five.

4
00:00:09,480 --> 00:00:14,071
[because negative 5 plus 5 makes
it a zero] Okay

5
00:00:14,071 --> 00:00:18,949
brings it back zero but here is the thing
if x changes by negative five how
much does y change

6
00:00:18,949 --> 00:00:20,672
in this case

7
00:00:20,672 --> 00:00:22,615
[um]

8
00:00:22,615 --> 00:00:24,361
[Negative 5]

9
00:00:24,361 --> 00:00:25,884
No that is the change in x

10
00:00:25,884 --> 00:00:27,568
if x changes by megative five

11
00:00:27,568 --> 00:00:30,013
in this particular

12
00:00:30,013 --> 00:00:32,003
scenario how much does y change

13
00:00:32,003 --> 00:00:36,569
with respects to x, i made you say it a
million and ten times yesterday

14
00:00:36,569 --> 00:00:39,051
[oh whatever you multiply it by]

15
00:00:39,051 --> 00:00:41,476
What do you multiply it by

16
00:00:41,476 --> 00:00:43,399
what is that

17
00:00:47,289 --> 00:00:51,118
how do you know what to multiply it by,
you are thinking on the right lines

18
00:00:57,229 --> 00:00:59,412
[I'm not sure] Case

19
00:00:59,412 --> 00:01:02,204
[I am kind of confused too]

20
00:01:09,721 --> 00:01:11,346
[here can you repeat]

21
00:01:11,346 --> 00:01:15,420
So we know that in order to find
the starting value

22
00:01:15,420 --> 00:01:17,528
we have to change x by negative five

23
00:01:17,528 --> 00:01:20,671
you ok with that, Simone already said y

24
00:01:20,671 --> 00:01:22,096
So

25
00:01:22,096 --> 00:01:27,835
that's fine but with a constant
rate of
change function if you change x y
changes with it.

26
00:01:27,835 --> 00:01:32,512
but how is the question, if we change x
by negative five how will y change

27
00:01:33,814 --> 00:01:38,355
[times just as much] Times but
what is that factor

28
00:01:38,355 --> 00:01:41,221
[the seven]

29
00:01:41,221 --> 00:01:42,287
Yes why

30
00:01:42,287 --> 00:01:44,513
[because]

31
00:01:44,513 --> 00:01:48,825
[it stays the same and you just
plug the number in]Don't think
about plugging in

32
00:01:48,825 --> 00:01:51,292
numbers in what does the 7 represent

33
00:01:51,292 --> 00:01:53,097
in this case [the rate] The rate

34
00:01:53,097 --> 00:01:54,546
of change

35
00:01:54,546 --> 00:01:59,858
So the rate of change ladies and
gents tellyou exactly that how to change

36
00:01:59,858 --> 00:02:03,852
so if x changes by negative five y changes

37
00:02:03,852 --> 00:02:06,361
[negative five times by 7]

38
00:02:06,361 --> 00:02:09,669
Yes seven times as much I do not see

39
00:02:09,669 --> 00:02:11,098
on what you have typed in

40
00:02:11,098 --> 00:02:14,974
that when x changes by negative 5 y changes
7 times as much