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Answer:
The three-dimensional surface represented by the equation x+y=2 is an inclined plane, as seen in the image.
Answer:
Slope = -1
Step-by-step explanation:
Since, slope of a line passing through two points
and
is given by,
Slope = 
Therefore, slope of a line passing through two points A(1, 4) and B(3, 2) will be,
Slope = 
= (-1)
Therefore, slope of the line is (-1).