1. The problem statement, all variables and given/known data Find two straight lines that are perpendicular to y=0.25x and tangent to the curve f(x) = 1/x. 2. Relevant equations y=0.25x f(x) = 1/x. 3. The attempt at a solution What I did was equate y and f(x) and determined when they equal which is 2 and -2. The points are (2, 1/2) and (-2,-1/2). Now, I took the derivative of f(x) and got -1/x^2. Would I use this to find the slope at the two points? Then I could make the equation.