1. The problem statement, all variables and given/known data If f(x)= 3x^(2) - x + 4, find the values of m for which line y=mx+1 is a tangent to the graph of f? 2. Relevant equations None 3. The attempt at a solution Well first you have to get the derivative of the function which is 6x-1....Then what? There are no points given.....I tried solving in terms of x and plugging it back in the equation but it didn't work: x=(m+1)/6 and y=6x^(2)-x+1....I tried substituting these but nothing happened...... Any ideas?