You can put this solution on YOUR website! For the line 3x+2y-5=0, find the obtuse angle the line that makes with the positive direction of the x-axis.
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Step 1, find the slope of the given line. Call it
Step 2, lines perpendicular have a slope that's the negative inverse. = Call it
Step 3, use Where (x1,y1) is the point.
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KNOW how to do this. It's basic.