1. The problem statement, all variables and given/known data Using calculus, find the coordinates of the point on the line y =-2x+5, which is closest to the origin, and the corresponding value of D 2. Relevant equations y = -2x +5 3. The attempt at a solution I know I need to find a line that is perpendicular to the line of the equation, but I'm not sure how to find the equation of this line so that I can make the equations equal to each other. Something like d(x) = x2+y2 = x2 + (-2x+5)2 = x2 + 4x2+25 = 5x2 + 25 am I on the right track?