Someone help pls

The three graphs show different relationships between x and y. Does each
graph show a proportional relationship?
Graph A shows a straight line that passes through the origin. It shows a
proportional relationship between x and y.
Graph B is a straight line, but it does not pass through the origin. It does not
show a proportional relationship between x and y.
Graph C is not a straight line and does not pass through the origin. It does not
show a proportional relationship between x and y.
a. Is there a change you could make to Graph B from the Example so that it would
show a proportional relationship? Explain.
b. Graph C starts at the point (0, 2). If it started at the point (0, 0), would it show a
proportional relationship? Explain.
Describe the graph of the equation y - 6x.