Will give medal! Just need help asap! - The endpoints of line AB are A(9, 4) and B(5, –4). The endpoints of its image after a dilation are A'(6, 3) and B'(3, –3). Find the scale factor and explain each of your steps.

Question

Will give medal! Just need help asap! - The endpoints of line AB are A(9, 4) and B(5, –4).  The endpoints of its image after a dilation are A'(6, 3) and B'(3, –3). Find the scale factor and explain each of your steps.

eliesaab · Answer

Find the length of AB and A'B' using the distance formula and compare them

eliesaab · Answer

Let us suppose that you find AB=4 and A'B'=8 (You will obtain something different). In this case the scale factor will be 2

eliesaab · Answer

Are you with me?

eliesaab · Answer

The distance formula between (a,b) and (c,d) is given by
$$
\sqrt{(a-c)^2+(b-d)^2}
$$

umbrellamangolover · Answer

thank you but I don't see how this gives me the answer because i only have points a and b no c and d @eliesaab

eliesaab · Answer

You have 4 points A,B and A', B'
Find the length of AB and A'B' find their ratio

umbrellamangolover · Answer

Thank you have a good day!

eliesaab · Answer

YW