PLEASE HELP ME. I WILL GIVE YOU A MEDAL.

Polygon MNOPQ is dilated by a scale factor of 0.8 with the origin as the center of dilation, resulting in the image M′N′O′P′Q′. If M = (2, 4) and N = (3, 5), what is the slope of M'N'¯¯¯¯¯¯¯ ?

√2

1

√3

√1/2

Question

PLEASE HELP ME. I WILL GIVE YOU A MEDAL. 

Polygon MNOPQ is dilated by a scale factor of 0.8 with the origin as the center of dilation, resulting in the image M′N′O′P′Q′. If M = (2, 4) and N = (3, 5), what is the slope of M'N'¯¯¯¯¯¯¯ ?




√2

1

√3

√1/2

javierpratdesaba · Answer

Ok. First, a dilation occurs, so apply the dilations to the points M and N. Remember the formula is (kx, ky), with k as the scale factor. What would M' and N' be?

anonymous · Answer

Hi @javierpratdesaba 
How do you apply the formula (kx,ky) to M and N
I understand K is the scale factor.. In this problem it is .8
However I'm still a little confused.

javierpratdesaba · Answer

You would multiply the x and y coordinates in each of the points (M and N) by 0.8.

anonymous · Answer

Thank you so much

javierpratdesaba · Answer

Wait, that's not the answer though. You still need to use the slope formula to find the slope between M' and N'