Enable text based alternatives for graph display and drawing entry

Try another version of this question

Find the length of the leg `x` on the right triangle below. Enter the exact value, not a decimal approximation.

[Graphs generated by this script: initPicture(-3,16.583123951777+3,-3,16.583123951777+3);path([[0,0],[7,0],[0,16.583123951777],[0,0]]);text([7/2,16.583123951777/2],'18','right');text([0,16.583123951777/2],'x','left');text([7/2,0],'7','below');]

`x =`  

Get help:


X
MathQuill
   x  x    n  |   | (   ) π DNE
   x    (   ) π DNE
( ) ( ] [ ) [ ] —∞ DNE
< > or All Real Numbers DNE
log logn ln n  | | e 
sin cos tan arcsin arccos arctan  
[more..]