To start this problem you have to know that perpendicular slope is opposite reciprocal of the parallel slope. Knowing this and knowing that the initial slope you have is -3/5 since your line equation is in slope intercept form (y = mx + b) the opposite reciprocal of this will give you the perpendicular slope, which is 5/3. Next you will use the two points and the slop just found to write the equation of the line in point slope form (y-y0 = m(x-x0)).
Therefore, your answer in point slope form is y - 3/4 = 5/3(x - 2/3 )
Oct 26th, 2014
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