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fJekJh^1 L cbB

• noEPk;so ftZu o/fye cbBK ns/ ;ob o/yk d/ ;wheoDK dk pj[s T[g:'r j?. pkIko B'N
ftZu fe;h t;s{ dh ehws, wzr ns/ g{osh d[nkok fBoXkfos j[zdh j?. i/eo wzr ns/
g{osh cbB fdZs/ j'J/ 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.

• T[j ;ob o/yk fijVh f;oy s'A iKdh j? ns/ vkfJo/efNqe; d/ nB[;ko j[zdh j? gotb dk
neP ejkT[Adh j?.

1H15 Ppde'P (Keywords)

• v'w/B (Domain)^gqGkt y/so.

• o/Ai (Range)^gok;.

1H16 nfGnk; gqPB (Review Questions)

1H fBwB fbys cbBK B{z rqkc d[nkok gqdofps eo'^
(a) y = f (x) = 5 – 3x; gok; x = –2 s'A x = 5 d/ bJh.
2
(b) y = f (x) = 2x – 5x + 1; gok; x = –5 s'A x = 7 d/ bJh.
24
(c) y = f (x) = gok; x = 1 s'A x = 9 d/ bJh
x
2H fBwBfbys ;koDh d[nkok wzr ns/ g{osh cbB gsk eo'.
w{b wzr g{osh
1 100 50
2 50 75
3 0 100
3H fe;h pkIko d/ fBwBfbys wzr ns/ g{osh cbBK d/ ;kw: w{b s/ wksok gsk eo'^

(i) D = 15 – 3p; S = - 10 + 2p
(ii) D = 12 – 2p; S = –20 – 4p
2
(iii) D = 50 – 4p; S = 2 + 10p – p
4H fe;h t;s{ dh wzr ns/ g{osh cbB j/m nB[;ko jB^
D = 100 – 10p S = –12 + 9p
5H gotb dk f;yo, c'e; ns/ vkfJo/efNqe; gsk eo'^

2
(i) y = x + 3x – 2 ;ze/s^ y =   x+ 3   2 − 17
2  4 
2
(ii) (x – 2) = 4y – 16
.5
.5
6H T[sgkdB cbB y = 5 L K ftZu L ns/ K wId{oh ns/ g{zih jB. i/eo ngksekb ftZu
g{zih ;fEo j? ns/ K = 100 j? fijVh T[sgkdB cbB dk nB[o/yD eo'. n";s wId{oh
T[sgkd (Y/L) gsk eo' ns/ fJ; teo dk nB[o/y eo'.

T[Zso L ;t?^w[bKeD (Answer: Self Assessment)

1H (i) uo (ii) nuo (iii) ;zpzX (iv) fsoi:k (v) fBog/y
2H (i) (a) (ii) (b) (iii) (c)

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