Question

what is the line of best fit for (1,50 (3,13) (5,21)?

Answer 1

(1,5)

Answer 2

Well since the x-coordinates and y-coordinates are increasing in the same way (i.e:
for the x coordinates:
1 -> 3 -> 5... you have a distance of 2 between)

y coordinates:
5 -> 13 -> 21... you have a distance of 8 between)
You will have a perfect linear relationship (all the points will lie perfectly on the regression line), so you can just use the basic way for finding the equation of a line using 2 points (first find the slope, then the intercept)

Answer 3

so regular slope and regular y intercept

Answer 4

yeah. it will save time instead of using the formulas for the regression line because you have a perfect linear fit in this case

Answer 5

slope 4 y intercept 1

Answer 6

yup :)

Answer 7

awesome thanks

Answer 8

np