Rose drew a regression line for this paired data set. her line passed through (1, 2) and (3, 5) . what is the equation of rose's regression line?

A.

Step-by-step explanation:

We are given that,

The linear regression passes through the points (1,2) and (3,5).

As, the slope of a linear line is given by, .

We get, the slope of the linear regression is,

Slope = .

i.e. Slope = .

i.e. Slope = .

i.e. Slope = 1.5

As, the linear line is given by 'y=mx+b', where m is the slope and b is the y-intercept.

Substituting the slope and point (1,2) in the general form, we have,

implies implies i.e. b= 0.5

Hence, the equation for the regression line is

idk

step-by-step explanation:

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl