I have a scatter plot. 2 points on the scatter plot are
38.56, 732 and 40.97, 423. How do I write this in an equation to find the slope and vertical intercept?

Question

I have a scatter plot. 2 points on the scatter plot are 
38.56, 732 and 40.97, 423. How do I write this in an equation to find the slope and vertical intercept?

anonymous · Answer

I tried 723/38.56 - 423/40.97 = 300/-2.41 and I also reversed them and tried it that way. The site I used to make the scatter plot is telling me the slope is -62.06 but I am not coming up with that answer either way so I have no clue how it came up with that. I need the equation that will help me figure it out please.

amistre64 · Answer

oh, 2 points form a line ....

amistre64 · Answer

are you trying to make a best fit line?  a regression line?  or just some arbitrary line?

anonymous · Answer

Best fit line? I have the scatter plot and a line on it although none of the points line up directly with any line. Somehow I have to figure out the slope and vertical intercept though. I thought all I needed was any 2 numbers that are in the scatter plot. Would you like to see the scatter plot?

anonymous · Answer

http://prntscr.com/728kmj

amistre64 · Answer

there is no way you are going to get an exact result out of that.

do you have options?

amistre64 · Answer

it already hits the vertical axis at a point that can be estimated, and the place it hits th horizontal can be estimated too

we can approximate the slope using those points

what are your estimations for them?

amistre64 · Answer

pfft, might have to adjust a bit, its about the vertical = 10 line

10,2500  to  50,0  is what it looks like to me

amistre64 · Answer

thats about right ...

(0-2500)/(50-10)

anonymous · Answer

You lost me lol. I have all the points for the scatter plot if that would help any? http://prntscr.com/728t6r