+0  
 
0
55
3
avatar+14 

May you please help me with this, it is over till midnight 2 ASAP please i beg

 

This is about scatter plot...my worst enemy please help, please

 

Question 1 (1 point)

https://postimg.org/image/q1ywkkmt7/

 

Which equation BEST represents the line of best fit for the scatter plot?

Question 1 options:

y = 2x

y = 2x + 2

y = -2x + 2

y = x + 2

Save

Question 2 (1 point)

https://postimg.org/image/on78wz0hz/


Which equation best represents the line of best fit for the scatter plot?

Question 2 options:

y = x + 6

y = 2x + 6

y = -x + 6

y = -2x + 6

Save

Question 3 (1 point)

https://postimg.org/image/mp7tgsdt7/

Which of the linear equations BEST represents the line of best fit for the scatter plot?

Question 3 options:

y = x + 1

y = 2x - 1

y=1/2x−1

y=−1/2x−1

Question 4 (1 point)

https://postimg.org/image/hay1c5lpv/

Which linear equation is the BEST representation of the line of best fit for the scatter plot?

Question 4 options:

y = 3

x = 3

y = -3

x = -3

JOKERdps  Jun 7, 2017
edited by JOKERdps  Jun 7, 2017
Sort: 

3+0 Answers

 #1
avatar+25715 
+1

We have no view of the scatter plots!!

Alan  Jun 7, 2017
 #2
avatar+25715 
+2

For question 1 it looks like a straight line through the points would go through y = 2 when x = 0, so the constant term is 2.

 

The line would increase by 2 units in y for every 1 unit increase in x, so the gradient is 2.

 

Hence the best fit line would be y = 2x + 2

 

Try the others using the same reasoning (if the line decreases as x increases the gradient will be negative).

Alan  Jun 7, 2017
 #3
avatar+74653 
+2

Question 2

 

It appears that  when y changes by -3, x changes  by 3

 

So the slope is  :  change in y  / change in x   =   -3/3  = -1

And the y intercept  is at 6

So.....using the slope intercept form :

 

y = -1x + 6    =  -x + 6  

 

 

Question 3

When  y changes by - 1, x changes by 2  →  slope  =   -1/2

And the y intercept appears to be at  -1

 

So   the equation is  

 

y  = (-1/2)x - 1

 

 

Question 4

Easy!!!....this is a vertical line  at x  = -3

And that's the equation !!!!

 

 

cool cool cool

CPhill  Jun 7, 2017

6 Online Users

avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details