Start by finding the slope of the given equation by putting it into slope intercept form (which is y=mx+b). perpendicular lines have slopes that are opposite reciprocals of each other, so if the slope of one line is -1/2, the slope of the like perpendicular to it will be 2/1 (or just 2). your answer (in point slope form) should be: y-6 = -(3/4)(x-2), and you can adjust it if it needs to be in standard form (ax+by=c) or slope intercept form (y=mx+b).
