Answer :
Equation of a line is given by y - y1 = m(x - x1); where m is the slope and (x1, y1) is a point on the line.
y - 5 = 3(x - 3)
y = 3x - 9 + 5 = 3x - 4
y = 3x - 4
y - 5 = 3(x - 3)
y = 3x - 9 + 5 = 3x - 4
y = 3x - 4