Question

Elaina is using the two data points closest to the line to determine the equation of the regression line. What should Elaina find for the slope of the line? Round to three decimal places.

Answer 1

x 4 7.5 5.5 1 3 6.5 4 2 6 2
y 4 3 3.5 4.5 3 2 5 7 2.5 6

Answer 2

@campbell_st

Answer 3

well pick the 2 points closed to the line... and find the clope

M = rise/run rise = change in y run = chaneg in x

the slope will be negative....

Answer 4

just a sec

Answer 5

so looking at the diagram you will use (4, 4) and (5.5, 3.5)

so change in y or run is -0.5 run = 1.5

I'll leave you to calculate the value of the slope

Answer 6

-2/0

Answer 7

@phi

Answer 8

@mathstudent55

Answer 9

I got the slope from 4,4 and 5.5, 3.5

Answer 10

if you are using the points
(4, 4) and (5.5, 3.5)

do 4-3.5 for change in y
4 - 5.5 for change in x
what do you get for each ?

Answer 11

.5 and -1.5

Answer 12

what is 0.5/ -1.5 ?

Answer 13

.333remainder

Answer 14

what happen to the minus sign Plus/ minus is minus

Answer 15

I divided -0.5/-1.5 instead of .5/-1.5=-333remainder

Answer 16

so the answer rounded to 3 decimals is -0.333

Answer 17

333

Answer 18

-333

Answer 19

- ⅓ is -0.333 not -333

Answer 20

oh

Answer 21

Thank you