GRAPHS help asap!?

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does a line of best fit HAVE to pass through the origin? asap help please! thanks

2007-03-05 04:13:35 · 2 answers · asked by banana_split 1 in Science & Mathematics ➔ Mathematics

2 answers

No, if you are talking about scatter plots then the y-intercept is not bound at the origin. To find the best fit line you usually want to draw a line that has an equal amount of data points above and below the line. Then use graphical analysis to find its slope and y-intercept in the form of y=mx+b. That's the simple explanation to find a best fit line.

2007-03-05 04:21:31 · answer #1 · answered by swimguy112 2 · 0⤊ 0⤋

NO.

Y= mX +b
(that little b keeps it out of the origin, unless b=0)

2007-03-05 12:17:50 · answer #2 · answered by Grant d 4 · 0⤊ 0⤋