Yuav ua li cas koj nrhiav tau tus niam txiv muaj nuj nqi ntawm ib daim duab?
Yuav ua li cas koj nrhiav tau tus niam txiv muaj nuj nqi ntawm ib daim duab?

Video: Yuav ua li cas koj nrhiav tau tus niam txiv muaj nuj nqi ntawm ib daim duab?

Video: Yuav ua li cas koj nrhiav tau tus niam txiv muaj nuj nqi ntawm ib daim duab?
Video: yuam kev ua koj txiv tsev by nuj xeem nkauj tawm tshiab 2020-2021 2024, Kaum ib hlis
Anonim

Piv txwv li, koj tuaj yeem yooj yim "y=2*sin(x+2)" rau "y=sin(x)" lossis "y=|3x+2|" rau "y=|x|." Daim duab qhov tshwm sim. Qhov no yog qhov niam txiv muaj nuj nqi . Piv txwv li, lub niam txiv muaj nuj nqi rau "y=x^+x+1" tsuas yog "y=x^2," tseem hu ua quadratic muaj nuj nqi.

Hais txog qhov no, niam txiv txoj haujlwm ntawm daim duab yog dab tsi?

A niam txiv muaj nuj nqi yog qhov yooj yim tshaj plaws muaj nuj nqi ntawm ib tsev neeg ntawm muaj nuj nqi . ntawm daim ntawv no yog y = x2. Qhov yooj yim parabola yog y = x2,koj daim duab yog qhia ntawm sab xis. Cov daim duab dhau los ntawm keeb kwm (0, 0), thiab muaj nyob rau hauv Quadrants I thiab II.

Ib tug kuj yuav nug, dab tsi yog niam txiv sib npaug? A niam txiv kev ua haujlwm yog qhov yooj yim tshaj plaws ntawm ib tsev neeg ntawm kev ua haujlwm. Rau tsev neeg ntawm kev ua haujlwm quadratic, y = ax2 + bx + c, txoj haujlwm yooj yim tshaj plaws. ntawm daim ntawv no yog y = x2. Cov " Niam txiv " Graph: Qhov yooj yim tshaj plaws parabola yog y = x2, nws daim duab qhia ntawm sab xis.

Qhov thib ob, niam txiv txoj haujlwm hauv lej yog dab tsi?

Hauv lej , a niam txiv muaj nuj nqi yog qhov yooj yim tshaj plaws muaj nuj nqi ntawm ib tsev neeg ntawm muaj nuj nqi uas khaws cia lub ntsiab lus (los yog cov duab) ntawm tag nrho tsev neeg. Piv txwv li, rau tsev neeg ntawm quadratic muaj nuj nqi muaj daim ntawv dav dav. qhov yooj yim tshaj plaws muaj nuj nqi yog.

Koj pom Asymptotes li cas?

Qhov ntsug asymptotes yuav tshwm sim ntawm cov nqi ntawm x uas tus denominator yog sib npaug rau xoom: x − 1 = 0 x = 1 Yog li, daim duab yuav muaj ntsug. asymptote x = 1. To nrhiav kab rov tav asymptote , peb nco ntsoov tias qib ntawm tus lej yog ob thiab qib ntawm tus lej yog ib qho.

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