What is the constant of proportionality in the direct variation represented on the following graph 1. 4
2. -4
3. 1/4
4. -1/4

-4

Step-by-step explanation:

First find the slope

We need two points

( -1,4) and (0,0)

m= (y2-y1)/(x2-x1)

   = (0-4)/(0- -1)

    = -4 / (0+1)

    = -4/1

   = -4

The constant of proportionality is -4

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

what are you trying to solve here

step-by-step explanation: