Can someone help me with this math question

Answer:
see explanation
Step-by-step explanation:
To determine the magnitude of the scale factor, calculate the ratio of corresponding sides of image to original, that is
scale factor = [tex]\frac{A'B'}{AB}[/tex] = [tex]\frac{2}{5}[/tex]
ΔA''B''C'' is a reflection of ΔA'B'C' in the y- axis ( corresponding vertices are equidistant from the y- axis )