Yes. But for what?
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Unless they are the exact same lines, no. Parallel lines do not touch. If two lines have the same intercept value, they share a point, and therefore touch.
The two lines have identical slopes if they are parallel to each other. If y1 = mx1 + c is the equation for one line then y2 = mx2 + d is the equation of a parallel line where c ≠ d. "m" is the slope which is the same value in both equations.
If two or more lines are said to be parallel to one another, it means that they never intersect and that they have identical slopes. If they are expressed as equations (in the format y = mx + b), then you simply look to see if the value for m is the same for both.For example, the following lines would all be parallel to one another:y = 4x + 5y = 4x + 8y = 4x - 3
Depending on the value of the slope or gradient if its the same then they are parallel if its a reciprocal then they are perpendicular.
Without an equality sign and not knowing the plus or minus value of 5 the information given can't be considered to be a straight line equation. But if you mean: y = 3x+5 then all the lines parallel to it will have the same slope of 3 and a y intercept other than 5