Question

@directrix

Answer 1

this one is too similar

Answer 2

@Directrix

Answer 3

I can't see anything on the graph.

Answer 4

hopefully thats better

Answer 5

Order the equations below from best to worst in terms of how they best fit the data.

Answer 6

y = 3x+3
y = 2x+4
y = 2x+5

Answer 7

Question: Was the first problem of this ilk correctly answered in the previous question?

Answer 8

yes :) the last one was correct but what does ilk mean?

Answer 9

oh ok and yes it was and I managed to solve 2 more correctly but this one is too similar

Answer 10

http://lmgtfy.com/?q=ilk

Answer 11

lol I did look it up since I have to improve my english vocabulary either way :)

Answer 12

Where is the scatterplot?

Answer 13

the green dots (aka the table values to the left)

Answer 14

Regression Line: y = 2.5x + 3.7 Yes?

Answer 15

that was what I was doubting, how did you find that? and can you teach me?

Answer 16

Use this:
http://www.mathportal.org/calculators/statistics-calculator/correlation-and-regression-calculator.php

Answer 17

you have great websites for math thank you :)

Answer 18

and then yes that would be the regression line

Answer 19

Learn to use Desmos.com

Answer 20

Learn to use Desmos.com to graph the regression line along with the three contenders.

Answer 21

I did do that but you said it didn't show so I added a doc

Answer 22

Okay.

Answer 23

yeah :)

Answer 24

I think the one on the far left (is it purple or blue) is the very worst.

Answer 25

oh no I meant the left as in where the equations are and is the chart :)

Answer 26

Here is my best thought:

y = 2x + 5 Best
y = 2x +4
y = 3x + 3 Worst

I am wondering if the best and the second-best should be interchanged.

Where is our helper?

Answer 27

idk do you mean agent?

Answer 28

and yeah that is what I had but I wasn't sure

Answer 29

I have tested some points and sometimes one equation gives the best prediction and the next time another gives the best prediction.

Answer 30

yeah :/ but I think those are correct since you got the same ones :)

Answer 31

Maybe we should do more cogitation on this problem and move on to the next and come back later to this.

Answer 32

Desmos.com will make tables of valves for linear equations if anybody knows how to do it.

Answer 33

I don't I just started using desmos because you told me about it like 1 hours ago

Answer 34

wow I thought I had send that message and it was still typing it sorry @Directrix

Answer 35

I have the user's guide somewhere but I cannot find it. If you register, then you can find the manual.

Question: Do you want to answer this question and be done with it. Or, do you want to sit on it for now?

Answer 36

sit on it and wait and I think that y = 2x +4 is suppossed to be the best option because look at the graph and the slope that is has of 3/1 and then 2/1

Answer 37

actually scratch that i got confused lol

Answer 38

It would be easy to make charts for each of the contenders. Five y values to compute per chart. That may give insight but I doubt the charts would be conclusive.

Answer 39

umm idk how to do that but if you instruct me then I will

Answer 40

@Directrix

Answer 41

nvm it said incorrect but no worries :)