Page 28 - DECO403_MATHEMATICS_FOR_ECONOMISTS_PUNJABI

noEPk;soh dk rfDs

B'N b/ykfuZso gkoPt fuZso ftZu fdykfJnk frnk j?.

2
T[dkjoD 10H teo x − y = 9 dk b/ykfuZso fyZu'.
2
jZb L fdZsk j'fJnk teo fBwB j?^
2
x − y = 9
2
−
=
iK (x 2 / 9) (y 2 / 9) 1
=
−
fijVk (x 2 / a 2 )(y 2 / b 2 ) 1 d/
o{g dk fJZe nfsgotb
(hyperbola) j?.
s[bBk eoB s/,
a = ns/ b =
9
2
9
2
⇒ a =± ns/ b =±
3
3
∴ noX^nB[gq;E neP a= = 3
3
ns/ noX^;z:[rwh neP b==
=
j[D x-neP s/ OA OA′ =
3
ns/ y-neP s/ OB = OB′ = 3
d{ohnK b? e/ tor PQRS pDkfJnk.

1H13 noEPk;so ftZu o/fye cbBK dk T[g:'r
(Use of Linear Functions in Economics)
noEPk;so ftZu o/fye cbBK ns/ ;ob o/yk d/ ;wheoDK dk pj[s T[g:'r j?. pkiko ftZu
fe;h t;s{ dh ehws, wzr ns/ g{osh d[nkok fBoXkfos j[zdh j?. i/eo wzr ns/ g{osh cbB
fdZsk j'D sK n;hA ;kw:kt;Ek fpzd{ T[Zs/ nfijh ehws ns/ wksok dk fBoXkoD eo ;ed/ jK
fiZE/ wkb p/uD ns/ yohdD tkb/ d'B'A jh ;zs[PN j' ikD.

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