Start at A to draw a line up to B

[NAL123]

A teacher instructs their students to draw a line from point A to point B, which of the following is/are grammatically correct?

1) Draw a line starting at A and ending at B.
2) Start at A to draw a line up to B.
3) Start to draw/drawing a line at A and end it at B.

I think the simplest would be "draw a line from A to B", but here I'd like to know the grammatical status of (1), (2) and (3). Do they all make sense?

 

[tedmc]

Why do you want to consider the other options which are unnecessarily wordy?

 

[NAL123]

Why do you want to consider the other options which are unnecessarily wordy?

Actually I teach a drawing subject at a college and sometimes I say sentences like 1, 2 or 3 in class. I'm just worried if I'm actually making any sense to my students.

 

[5jj]

A teacher instructs their students to draw a line from point A to point B "draw a line from A to B"

The students can do this only if they are given the two points.

 

[NAL123]

The students can do this only if they are given the two points.

Yes, the students are given the two points.

 

[Tarheel]

Those instructions are very different from each other.

I might say:

Draw a line from A to B.

That's simple, direct and to the point.

 

[NAL123]

Those instructions are very different from each other.

Just sentence structure wise or meaning-wise? I mean, do they convey similar (if not the same) meanings to "draw a line from A to B"?

 

[Tarheel]

If I said the instructions are different from each other that means they say different things.

If you want to tell them to draw a line from A to B then you should in my humble opinion say exactly that.

I guess you could say "Draw a line starting at A and ending at B," but I I don't know why you would do that. (There might be a reason for that. I just don't know what it is.)