quadratic functions Flashcards

1
Q

каноничен вид

A

f (x) = a (x-α) + β

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2
Q

α

A

-b / 2a

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3
Q

β

A

4ac - 4b² / 4a

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4
Q

дефинициона област

A

Df = R

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5
Q

нули на функција

A

пресек со x-оска и пресек со y-оска

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6
Q

осна симетрија

A

x = α

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7
Q

екстремна вредност

ако a˃0

A

има Ymin = β

каде за x = α

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8
Q

екстремна вредност

ако a˂0

A

има Ymax = β

каде за x = α

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9
Q

множество вредности Vf

ако a˃0

A

Vf = [β, +∞)

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10
Q

множество вредности Vf

ако a˂0

A

Vf = (-∞,β]

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11
Q

Монотоност

ако a˂0

A

за x е (α, +∞) f(x)➘
за x е (-∞, α) f(x) ➚

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12
Q

Монотоност

ако a˃0

A

за x е (-∞, α) f(x)➘
за x е (α, +∞) f(x) ➚

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