There are 20 years on the x-axis of a line graph. I want the scale for the first 9 years to be 1 (So year 1,2,3,...etc), and then 10-20 to be 2 (so 12, 14,16,18..etc). How do I do that?
Also, how to find the intersection point between the two lines on line graph and show its corresponding year?
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