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## Homework Statement

Find the equation of the line that is perpendicular to the tangent line to the curve, y=(3x+1)/(4x-2) at the point (1,2)

## Homework Equations

## The Attempt at a Solution

I am absolutely confused with this problem. I tried taking a derivative of the equation. And I got y'=-10/(4x-2)

^{2}

I couldn't set it equal to 0, it will not work. What have I done wrong?