Check the box [math]\frac{OA'}{OA}[/math] in the upper right corner. How does the ratio [math]\frac{OA'}{OA}[/math] compare to the scale factor [math]k[/math]? (Be sure to move points and slider around!)
Check the box [math]\frac{OB'}{OB}[/math] on the middle (far right). How does the ratio [math]\frac{OB'}{OB}[/math] compare to the scale factor [math]k[/math]? (Be sure to move points and slider around!)
Check the box [math]\frac{A'B'}{AB}[/math] in the lower right corner. How does the ratio [math]\frac{A'B'}{AB}[/math] compare to the scale factor [math]k[/math]? (Be sure to move points and slider around!)