Linearna funkcija Flashcards

1
Q

predpis lin.f.

A

f(x)=kx+n

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2
Q

k je

A

smerni koeficient

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3
Q

k<0

A

premica pada

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4
Q

k>0

A

premica raste

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5
Q

k=0

A

premica je vzporedna osi x

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6
Q

smerni koeficient določa

A

strmino funkcije glede na simetrali kvadrantov

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7
Q

oblike linearnih funkcij

A
  • EKSPLICITNA OBLIKA y=kx + n
  • IMPLICITNA OBLIKA ax + by + c=0
  • ODSEKOVNA OBLIKA x/m +y/n =1
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8
Q

graf linearne funkcije

A

-Število n pomeni presečišče grafa z ordinatno osjo (f (0) = n). Imenujemo ga odsek na
osi y, ali tudi začetna vrednost (s točko N(0, n)
-Število k določa smer premice, zato ga imenujemo smerni koeficient. Ustrezno točko
dobimo tako, da se iz točke N pomaknemo za eno enoto v desno in za k enot navzgor
(oziroma navzdol, če je k negativen).

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