Jemma wants to solve the following system using the elimination method: y = x − 6
y = 6x − 19

What number should the equation y = x − 6 be multiplied by to eliminate x?

a
1

b
2

c
4

d
−6

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

c

step-by-step explanation: