Slope-Intercept Form of a Straight Line (y = mx - ChiliMath Example 6: Write the slope-intercept form of the line with a slope of {3 \over 5} and through the point \left( {5,\, - 2} \right). We have a slope here that is not an integer, i.e. the denominator is other than positive or negative one, \pm 1. In other words, we have a “true” fractional slope.