Answer:
a line going straight up and down at x = -4
Step-by-step explanation:
5.21 is the point 3/4 of the way from 4.58 to 5.42
Step-by-step explanation:
The two endpoints of the problem are
A = 4.58
B = 5.42
In order to find the point C which is 3/4 of the way between A and B, we have to divide the distance between A and B in 4 parts, then add 3 parts to the right of point A.
We start by finding the distance between A and B:

Now we divide this distance in 4 parts:

And point C is 3 parts to the right of A, therefore:

Learn more on how to divide segments:
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If it's a square, then 3Y = 2X
72 = 4(2x) = 4(3Y)
So X = 9, Y = 6