I think it would have to be a problem with a negative number plus and positive number...
Step-by-step explanation:
To calculate a slope, we need to apply: 
Applying formula to each slope:

So, as you can see, there are equal pair of slopes, meaning that they are parallels, which<em> demonstrate that it's actually a quadrilateral figure.</em>
Answer:
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Step-by-step explanation:
The answer is x=4, y=-2 and the ordered pair would be (4,-2) good luck