Linearna funkcija Flashcards

1
Q

Kaj je linearna funkcija?

A

je funkcija realne spremenljivke s predpisom:

f(x) = kx + n k,n je el. R

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Kaj lahko napišemo namesto f(x)

A

y

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Kako funkcijo upodobimo na koordinatnem sist.?

A

1 označimo začetno vrednost (na y osi)
2 gremo 1 enoto v desno
3 gremo gor (če je k +) oz dol (če je k -) za toliko kot je sm. koeficient

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Katere funkcije poznamo glede na naraščanje?

A

naraščujoča
padajoča
konstantna

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Kdaj je funkcija naraščujoča?

A

k > 0

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Kdaj je funkcija padajoča?

A

k < 0

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Kdaj je funkcija konstantna?

A

k = 0

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Kako imenujemo presečišče z y-osjo?

A

začetna vrednost

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Kako s predpisom zapišemo začetno vrednost?

A

f(0)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Zakaj je predpis začetne vrednosti f(0)?

A

ker je vrednost koordinate x 0

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Kako izračunamo začetno vrednost?

A

v predpisu namesto x vstavimo 0

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

KAko imenujemo presečišče z x - osjo

A

ničje funkcije

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Kako s predpisom zapišemo ničlo funkcije?

A

f(x) = 0

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Kako izračunamo ničlo funkcije?

A

v predpisu namesto f(x) vstavimo 0

How well did you know this?
1
Not at all
2
3
4
5
Perfectly