Step-by-step explanation: The slope of 2 in this problem can be thought of as 2 over 1. Remember, the y-intercept is how far up or how far down we go on the y-axis.
So after plotting your y-intercept down 6 units on the y-axis and labeling that point A, go up 2 and over 1 to plot point B and then draw your line.
I have provide the graph of this line in the image attached.