Question

how can wright the scale on x axis and on y axis​

Answer 1

Actually it's usually the case that the x and y scales are different because we're usually graphing different things. In your case you're graphing angles against angles, but graphs might be distance against time or force againt distance or lots of things that have different x and y axes.

Answer 2

Answer:

Basically scale of graph is written by hand. x axis = 1unit = 10students. Similarly you can do it for y axis.