SPRAŠEVANJE št. 3 Flashcards

1
Q

intervali

A

a in b sta naravni števili, za katere velja, da je
a<b interval od števil a - b je množica vseh realnih števil

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2
Q

vrste intervalov

A
  • zaprti []
  • odprti ()
  • polodprt [)
  • polzaprt (]
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3
Q

absolutna vrednost

A

oddaljenost števila a od izhodišča
oznaka : l a l

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4
Q

lastnosti absolutne vrednosti

A
  1. l a l ≥ 0, enaka, ko a = 0
  2. l a l = l - a l
  3. l a · b l = l a l · l b l
  4. trikotniška enakopravnost
    l a + b l ≤ l a l + l b l
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5
Q

abcisna os

A

y = 0

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6
Q

ordinatna os

A

x = 0

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7
Q

koordinatni sistem

A

R × R
kartezični produkt dveh realnih osi

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8
Q

razdalja med dvem točkama v k.s.

A

dolžina daljice med tema dvem točkama

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9
Q

linearna funkcija

A

realna funkcija realne spremenljivke te oblike
(f(x) = kx + n k,n ∈ R)

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