The equation of any straight line can be written as y=mx+c, where m is its slope and c is its y - intercept.
3x−y−8=0 can be written as y=3x−8
Comparing this equation with the standard form of the equation, we get: m=3,c=−8
Hence, slope of 3x−y−8=0 is 3 and y -intercept is −8