You decide to establish a new temperature scale on which the melting point of ammonia (-77.75 C ) is 0 A, and the boiling point of ammonia (-33.35 C ) is 200 A

Question

What would be the temperature of absolute zero in A ?

Answer 1

..C...........K.......A
..100....|...373.....
.........|...........
.........|...........
.........|...........
.........|...........
...0.....|...273.....
.........|...........
.........|...........
.-33.35..|...........200
.........|...........
.........|...........
-77.75...|...........0
.........|...........
.........|...........
-273.15..|.....0.....?
----------------------
Not to scale. There are 200 divisions on the A scale vs 77.75-33.35 = 44.4 divisions on C scale. Therefore, to convert C to A we must multiply all of the readings by the factor 200/44.4. It is offset by 350.22 degrees. We can check it out to make sure we are right.
Let's convert -77.75C to A. The answer should be zero A.
-77.75 x (200/44.4) + 350.22 = -350.22+350.22 = 0. Right.
So what is -273.15 C on the A scale?
-273.15 x (200/44.4) + 350.22 = ?

Answer 2

Spacing is a problem on this forum but I think you can see that the vertical bar should be a line from top to bottom and represents a scale.