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3 ujredebiani rveulis furcelze SabloniT aageT<br />

y = x2 formuliT mocemuli funqciis grafiki. grafikis<br />

mixedviT ipoveT:<br />

a) x-is mniSvneloba, Tu y(x) = 9; 3,2; 8.<br />

b) f(–3); f(0); f(2,7); f(3).<br />

g) rogori mniSvnelobebis miReba SeuZlia x-s — daadgineT<br />

y = x 2 funqciis gansazRvris are.<br />

d)rogoricvlebafunqciismniSvnelobebi,Tuxizrdeba:<br />

1) –∞-dan 0-mde; 2) 0-dan +∞-mde?<br />

4 mocemulia f : x→x 2 funqcia. SeavseT cxrilSi carieli ujrebi<br />

ise, rom pirvel striqonSi x-is mniSvnelobebi zrdis mixedviT<br />

iyos dalagebuli.<br />

x –4 0 1 3<br />

f(x) 9 4 4<br />

5 mdebareobs Tu ara f(x)=x 2 funqciis grafikze wertilebi:<br />

A(–1,5; 2,25); B(2,3; 4,29); C(1,3; 1,6); D(–0,2; 0,04).<br />

6 mTamsvleli A mwvervalis dalaSqvris Semdeg<br />

gaemarTa B mwvervalis dasap y robad. wiri,<br />

romelzec unda imoZraos mTa msvlelma, parabolaa.<br />

ipoveT xeobis siR r me, Tu mwver valebs<br />

Soris manZili 80 m-ia (mwvervalebis simaRle<br />

zRvis donidan to lia).<br />

7 erTsa da imave marTkuTxa sakoordinato<br />

sistemaSi daxazeT f : x →x 2 (SabloniT) da<br />

g : x → x + 3 funqciaTa grafikebi. abscisaTa<br />

RerZze (wiTlad SeaferadeT) is wertilebi,<br />

romelTaTvisac sruldeba:<br />

a) x 2 = x + 3; b) x 2 < x + 3; g) x 2 ≥ x + 3.<br />

x<br />

1<br />

1<br />

8 x sm sigrZis gverdis mqone kvadratis<br />

kuTxeebSi amoWres 1 sm sigrZis gverdis<br />

mqone patara kvadratebi (nax. 1). dawereT<br />

funqcia, romelic Tavdapirveli<br />

kvadratis gverdis sigrZes uTanadebs<br />

miRebuli figuris (cisferi) farTobs;<br />

9 F wertili mdebareobs y = x 2 +C funqciis grafikze. ipoveT C<br />

ricxvi, Tu:<br />

a) F(0;2); b) F(11;0); g) F(1;12); d) F(4;28).<br />

10* cnobilia, rom y=x 2 funqciis grafikze mdebareobs wertili<br />

A( m;27). mdebareobs Tu ara imave grafikze:<br />

a) M(5; 8|m|+1) wertili; b) M(2m; m 2 – 1) wertili.<br />

A<br />

6<br />

5<br />

4<br />

3<br />

2<br />

1<br />

y<br />

0<br />

parabolis Sabloni<br />

80 m<br />

h<br />

B<br />

x<br />

gasaxseneblad!<br />

Tu wertili mdebareobs<br />

grafikze,<br />

maSin misi koordinatebi<br />

akmayofilebs<br />

grafikis Sesabamis<br />

gantolebas.<br />

23

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