how to extend a straight line through two points to the y-axis of the plane

I have a graph of this type and I have created the straight line dashed in red that passes through the point of coordinates 0-0 and the point marked with the red dot. now I should extend this line until it meets the y axis, always maintaining the same inclination as the straight line. this is because then I need to identify the coordinates of the points of intersection between the straight line and the other curved lines with values 10-1 and 0.1.

how can I do? can anyone help me?