Question

I can't find the error?

Answer 1

of wat?

Answer 2

that ^ @madrockz

Answer 3

I thought that it was maybe that they left out a step but now I am not sure.

Answer 4

it will be 10-15/(17-18)

Answer 5

@Broganleab

Check the computation of the slope between the first and last points.

Answer 6

u should take the corresponding x values.

Answer 7

So the slope is wrong but how I am still not understanding ....sorry it's 5 am my brain is not working properly

Answer 8

Just be reminded that
\[m = \frac{ y _{1}-y _{2} }{ x _{1}-x _{2} }\]
So if you used 10 and 15, you should take into consideration the 17 and 18

Answer 9

I mistook the independent variable for the dependent one so forget my suggestion.

Answer 10

Ah so it should be m = 15-10/18-24?

Answer 11

All the points will not lie on a single line. I think you need to find best fit line.

Answer 12

No. It should be m = (15-10)/(17-18)
as you can see in the table.

Answer 13

No @Yttrium what she is doing is correct. She is asked to find the slope using first and last point.

Answer 14

Oh sorry. My error.

Answer 15

@Broganleab have you learned about best fit lines?

Answer 16

I have I understand it now thank you!

Answer 17

what answer you got...can you please share?

Answer 18

Why is the first point (18,15) used to form the linear model equation?

Answer 19

hang on I am working through it right now

Answer 20

wouldnt it still be the original answer since it is still 5/-6?

Answer 21

@ankit042

Answer 22

yes. there's no actually error in it. hahahahaha!

Answer 23

I am not able to see any mistake in what you have done. I beleive instruction given in your exercise are not correct for this question.
What method have you leaned to find best fit lines?

Answer 24

The given example is actually correct.

Answer 25

They let P1(24,10) and P2(18,15)

Answer 26

son of a feather so its just the same thing but with the wrong way to get 5/-6 listed?

Answer 27

my homework is stupid omg

Answer 28

-5/6 and 5/-6 are actually the same

Answer 29

I still don't understand. But it looks like you guys got the answer

Answer 30

@ankit042 , you know the formula of slope right?

Answer 31

I know the formula and understand what she has done. But this is a case of best fit. You have to find the line which fits max points (least error) technically it is called Linear regression.
It is an advance concept so not sure it is taught in her class

Answer 32

If taking first and last point is something told in the school then It is ok