1
00:00:00,000 --> 00:00:02,099
What is the point for 2b.

2
00:00:02,099 --> 00:00:05,208
[negative 3,4]

3
00:00:05,208 --> 00:00:07,094
negative 3 well

4
00:00:07,094 --> 00:00:11,134
It is negative 3 and four

5
00:00:11,134 --> 00:00:13,159
Ok so

6
00:00:13,159 --> 00:00:16,300
So what did you and Casey
come up with so far

7
00:00:16,300 --> 00:00:19,190
[y equals negative 2x]

8
00:00:19,190 --> 00:00:20,952
k

9
00:00:24,158 --> 00:00:25,541
[4

10
00:00:25,541 --> 00:00:26,966
minus two

11
00:00:26,966 --> 00:00:29,376
but I know like it is wrong

12
00:00:29,376 --> 00:00:34,093
in the parentheses four minus two

13
00:00:34,093 --> 00:00:35,658
parentheses]

14
00:00:35,658 --> 00:00:38,262
two

15
00:00:38,262 --> 00:00:40,469
[It was like timed and then two

16
00:00:40,469 --> 00:00:43,901
[it would be one parenthese
times another parentheses]

17
00:00:43,901 --> 00:00:45,951
Ok well hang on a second

18
00:00:45,951 --> 00:00:47,500
So ladies and gents.

19
00:00:47,500 --> 00:00:50,740
What x value is your reference
in this problem.

20
00:00:50,740 --> 00:00:53,715
Where is your reference for
your x value?

21
00:00:55,003 --> 00:00:56,268
Is that negative three

22
00:00:56,268 --> 00:01:00,396
but if you plan on finding the initial value,
where does the initial value take place?

23
00:01:00,396 --> 00:01:02,298
[2]

24
00:01:02,298 --> 00:01:08,355
At zero so what you know is at
negative three,what you would like to know
is at zero.

25
00:01:08,355 --> 00:01:11,037
What is the change in x

26
00:01:11,037 --> 00:01:12,786
that will accomplish that for you?

27
00:01:14,373 --> 00:01:16,301
A positive three, to add three

28
00:01:16,301 --> 00:01:18,905
so you need to change

29
00:01:19,929 --> 00:01:22,272
your x's by positive three

30
00:01:22,272 --> 00:01:25,927
if you are at negative and you like the
initial value, which is at zero

31
00:01:25,927 --> 00:01:27,936
you need to change by positive three.

32
00:01:27,936 --> 00:01:29,438
O.k. well ladies and gents

33
00:01:29,438 --> 00:01:32,224
if x changes by three how much does y change

34
00:01:32,224 --> 00:01:35,112
[three] nope [negative three] nope

35
00:01:35,112 --> 00:01:37,635
[four] I made you say it a million
times yesterday

36
00:01:37,635 --> 00:01:41,631
The same as [negative 2x]

37
00:01:41,631 --> 00:01:44,789
[times as much] Mr. Forbes say
it nice and loud.

38
00:01:44,789 --> 00:01:46,234
[negative 2 times as much]

39
00:01:46,234 --> 00:01:48,460
Negative 2 times as much

40
00:01:48,460 --> 00:01:51,329
However much x changes

41
00:01:51,329 --> 00:01:54,034
your y value thanks to rate of change

42
00:01:54,034 --> 00:01:56,384
will be negative 2 times as much

43
00:01:56,384 --> 00:01:57,828
If you said it I apoogize,
didn't hear you.

44
00:01:57,828 --> 00:02:03,388
So if we change x by three,
y will change by negative 2 times as much.

45
00:02:03,388 --> 00:02:06,900
So I have two parentheses to incorporate
the product right there.

46
00:02:06,900 --> 00:02:08,627
OK so

47
00:02:08,627 --> 00:02:10,372
Once it calculates that

48
00:02:10,372 --> 00:02:13,022
the three times negative two what is
that going to represent

49
00:02:14,486 --> 00:02:18,343
Samantha what is the product of three
times negative 2 going to
represent in this?

50
00:02:26,399 --> 00:02:29,389
you had to do it on the front,
what is the three again?

51
00:02:32,724 --> 00:02:34,348
What is just the three Sabrina?

52
00:02:34,348 --> 00:02:38,093
[the change]

53
00:02:38,093 --> 00:02:43,580
The change yes, the change necessary
3 is the change, negative two is the

54
00:02:43,580 --> 00:02:47,519
rate so that product is what

55
00:02:47,519 --> 00:02:49,134
[the change in y]

56
00:02:49,134 --> 00:02:54,195
The change in y yes good, so this product
that I am not asking it to do for me

57
00:02:54,195 --> 00:02:56,923
is calculating the change in y

58
00:02:56,923 --> 00:02:59,034
well where are you changing from?

59
00:03:05,729 --> 00:03:08,431
I have the change in y, but where
are you changing from?

60
00:03:09,520 --> 00:03:11,906
Four your y value was at four

61
00:03:11,906 --> 00:03:13,449
your changing

62
00:03:13,449 --> 00:03:15,375
from that four