Which linear equation best represents the line of best fit for the scatterplot?

a) y = 3x
b) y = - 3x
c) y = 1/3x
d) y = - 1/3x

option: D is true.

Step-by-step explanation:

The linear equation that Best describes or represents the line of best fit of the scatter plot is:

y=-3x.

Since clearly from the graph if we consider a line of best fit as a line passing through (0,0) and (-3,1).

Then we find the equation of line passing through these two points.

The equation of line passing through (a,b) and (c,d) is given by:

Here we have:

(a,b)=(0,0) and (c,d)=(-3,1)

The equation of line is:

Hence,  the linear equation BEST represents the line of best fit for the scatterplot is:

Hence, option D is true.

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it