Modulo graph paper" consists of a grid of m^2 points, representing all pairs of integer residues (x,y) where 0= The graph of 3x\equiv 4y-1 \pmod{35} has a single x-intercept (x_0,0) and a single y-intercept (0,y_0), where 0\le x_0,y_0<35.
Wait actually no it isnt 1: P
The answer is 2 + 11 = 13.