For this case we have that the equation of a line of the slope-intersection form is given by:

Where:
m: It's the slope
b: It is the cut-off point with the y axis
In this case we have the following data:

Then, the equation is of the form:

We find "b" replacing the point:

Thus, the equation is:

Answer:

What are you trying to find out the length of
Answer:
The answer is actually <em>CD, GH, and AB</em>. I got it incorrect from the answer above. This is for people in the future who are looking for answers and don't get messed up over that guy.
Step-by-step explanation:
I just took the test and got the answer wrong. Correct answer above. (Checkmarks next to answer means its correct)
Answer:
The answer would be 1:2 since its doubled.