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`h` varies directly with `d^2` and when `d=3`, `h=90`


Give the constant of proportionality, `k=`  

Give the function that relates the relates h and d.  

If `d=6`, then `h=`  

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   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  
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