Please please help i do not get

The answer would be -3/4

Step-by-step explanation:

Those points are stated using the normal X-Y coordinate system, in which +X is to the right, and +Y is up.  Slope is calculated by subtracting the beginning point from the final.  The final point will be the one with the highest X value,

The slope is  the change in Y over the change in X.

m = (0 - 3) / (0 - (-4)) = -3 / +4 = -0.75

-0.75= -3/4

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geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

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