The equation you are given is 6y+36x-18=0
You have to transform this equation into the format of y = mx + b, where m = slope, and b = y-intercept.
6y+36x-18=0, move everything except of the y to the other side
6y=-36x - 18, then divide by 6 to remove the coefficient of y
y=-6x - 3, this is your final answer
slope = -6
y-intercept = -3