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# Coordinate of Straight lines

How many straight lines are there on the Cartesian coordinate plane with slope 1?

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- 老爺子Lv 71 decade agoFavorite Answer
There are infinite number of straight lins on the Cartesian coordinate plane with slope 1.

The equation of straight line with slope 1 is: y = x + c

c is the y-intercept.

c can be any real number.

Therefore, there are infinite number of straight lines.

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