Cov txheej txheem:

Koj yuav ua li cas thiaj daws tau qhov sib npaug ntawm qhov tsis sib xws?
Koj yuav ua li cas thiaj daws tau qhov sib npaug ntawm qhov tsis sib xws?

Video: Koj yuav ua li cas thiaj daws tau qhov sib npaug ntawm qhov tsis sib xws?

Video: Koj yuav ua li cas thiaj daws tau qhov sib npaug ntawm qhov tsis sib xws?
Video: Tseem Ev Lub Kawm - Koos Loos 2024, Kaum ib hlis
Anonim

Muaj peb kauj ruam:

  1. Rearrange tus kev sib npaug yog li "y" nyob rau sab laug thiab txhua yam ntawm sab xis.
  2. Teem lub "y = kab" (ua rau nws yog ib txoj kab ruaj khov rau y≤ lossis y≥, thiab ib kab dashed rau y)
  3. Duab ntxoov ntxoo saum kab rau "ntau dua" (y> lossis y≥) lossis hauv qab kab rau "tsawg dua" (y< lossis y≤).

Yog li ntawd, koj yuav ua li cas daws ib qho kev tsis sib xws?

Kev daws qhov tsis sib xws ntawm ib leeg ua raws li zoo tib yam txheej txheem rau daws linear kev sib npaug. Peb yuav ua kom yooj yim rau ob sab, tau txais tag nrho cov ntsiab lus nrog qhov sib txawv ntawm ib sab thiab cov lej ntawm lwm sab, thiab tom qab ntawd muab faib / faib ob sab los ntawm coefficient ntawm qhov sib txawv kom tau txais kev daws teeb meem.

Tom qab ntawd, lo lus nug yog, lub ntsiab lus ntawm linear inequality yog dab tsi? Los ntawm Wikipedia , phau ntawv dawb encyclopedia. Hauv lej a linear tsis sib xws yog ib kev tsis sib xws uas koom nrog a kab tawm muaj nuj nqi. A linear tsis sib xws muaj ib lub cim ntawm kev tsis sib xws :. Nws qhia cov ntaub ntawv uas tsis sib npaug hauv daim duab.

Nyob rau hauv no, dab tsi yog ib qho piv txwv ntawm ib tug linear inequality?

Piv txwv 1: Graph ua linear tsis sib xws y > 2x − 1. Graph the line y = 2x – 1 in the xy axis using your preferred method. Txij li thaum kev tsis sib xws lub cim tsuas yog loj dua ">", thiab tsis ntau dua lossis sib npaug rau "≧", txoj kab ciam teb yog dotted lossis dashed.

Dab tsi yog linear inequality thiab piv txwv?

Linear tsis sib npaug hauv ob qhov sib txawv. Qhov kev daws teeb meem ntawm a linear tsis sib xws Hauv ob qhov sib txawv xws li Ax + Los ntawm> C yog ib khub xaj (x, y) uas tsim cov lus tseeb thaum cov txiaj ntsig ntawm x thiab y raug hloov mus rau hauv kev tsis sib xws . Piv txwv . Yog (1, 2) kev daws teeb meem rau cov kev tsis sib xws . 2x + 3y> 1.

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