. yi geth ee, ae . o. . 
. 
* s. 
Vets e wy * of Cintrad eee, "a ‘a4 379°. 
sto 4 "Seale fedion if A Roe B ba the Naiatroute: 4 : 
and-conjugate axes, L the Jaths retlunis. y the. 
 diftance’ of any, ‘point in the feétion: 1, from the 
“focus, and pa perpendicular from thence upon 
a 5 aetcRt to that point ; then. per ‘conics ‘p= 
LBy. ne 
——— 
VA Le ee 
place according. 4s the curve* eee AP ako : 
or ellipfe; but in the parabola, “ being"infinite; 
the ers or noes, ‘fign aking, 
y will vanifh. ‘Hence, becaufe® in. this, ait ” 
m= ——— Xs" =f", it is evident that ba firte 
equation ae to’ an, hyperbola, — A being =, 
ae Baa as aaa 
a 
m—1 > 152 —_—2 rh vs? ie % ° r t ~ 
o “Eiki. 4 
: B? Sn P* ae P 
and L= i= —— 
r 
the perpendicular upon the afymptote= aif es faa 
- > 
ae ~ ad’ : * 
“x Pags= “ A 
” The fecénd is, an equation of the parabola 
7" » 4B 
=a 
from whenct it will appear that —,— : 7 alee x iv Ee 
a th P PP . 
or a —— te 
» 2 v8 Y 
“The third equation belongs to .an llipleg * 
= epg 5 oe (Se 
5 adie 
*. 
y 
“as P ay 
