The slope-intercept form is y=mx+b y = m x + b , where m m is the slope and b b is the y-intercept. Using the slope-intercept form, the slope is Undefined. All lines that are parallel to m=47 m = 4 7 have the same slope of Undefined .Click to see full answer. Just so, how do you find the slope of a parallel line?To find the slope of this line we need to get the line into slope-intercept form (y = mx + b), which means we need to solve for y: The slope of the line 4x – 5y = 12 is m = 4/5. Therefore, the slope of every line parallel to this line would have to be m = 4/5. Two lines are perpendicular if .Subsequently, question is, what is the perpendicular slope of 5? Correct answer: Explanation: Perpendicular lines have slopes that are negative reciprocals of one another. The given line’s slope is 5, which means that the slope of the other line must be its negative reciprocal. The negative reciprocal of 5 is . In this way, what is the slope of parallel lines? In other words, the slopes of parallel lines are equal. Note that two lines are parallel if their slopes are equal and they have different y-intercepts. In other words, perpendicular slopes are negative reciprocals of each other. Here is a quick review of the slope/intercept form of a line.What is point slope formula?Point-slope is the general form y-y1=m(x-x1) for linear equations. It emphasizes the slope of the line and a point on the line (that is not the y-intercept).