Which is the answer?

(a)= the third one  (b)= The last one

Step-by-step explanation:

One unit to the left of -8 gives you the first part which is -8.  Then one unit to the left must be a negative and is therefore -1.

Like above the first number is -8.  Since you're moving to the right, it has to be a positive making it +1.

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