Find the slope of the given line by placing it in slope-intercept form. y − y1 = m(x − x1) y − 5 = − 1 2 (x − 8) y − 5 = − 1 2 x + 4 y = − 1 2 x + 9 y = − 1 2 x + 9 11. Find the equation of the line passing through (−1,4) which is perpendicular to the line passing through (2,3) and (4,2)
