I am honestly not sure about this answer... try Khan Academy. Or, try breaking it down into steps.
I hope this helped... sorry about that. I will try this concept soon. :)
Answer:
Im not exactly sure but i think it's 1/4 or 1/5.
Step-by-step explanation:
This was based on my work I did.
Refer to the edited figure.
Triangles ABC and A'B'C' are similar because of AAA.
Also,

Therefore
ΔA'B'C' is 1/3 the size of ΔABC.
This means that the scale factor from ΔABC to ΔA'B'C' is a 3-factor reduction.
Answer: reduction; one-third.
The dilation is a reduction.
The scale factor of the dilation is one-third.
Answer:
positive
Step-by-step explanation:
From the number line
x>0 so it is positive
y <0 so it is negative
xy = positive * negative
= negative
-xy = negative * negative
= positive