1. The problem statement, all variables and given/known data Given the point (1,9) on a curve, and the slope = 4, what is the equation of the tangent line to the point? 2. Relevant equations #1) y-y1 = m (x-x1) or #2) y = mx+b 3. The attempt at a solution Using equation #1, I got y = 4x-3 Using equation #2, I got y = 4x+5 What am I doing wrong here?