Cov txheej txheem:
Video: Yuav ua li cas koj daws cov kab zauv sib npaug los ntawm graphical method?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib daim duab daws tuaj yeem ua los ntawm tes (ntawm daim duab ntawv), los yog nrog kev siv a daim duab tshuab xam zauv. Daim duab ib system ntawm linear equations yog yooj yim li daim duab ob txoj kab ncaj nraim. Thaum cov kab yog graphed, lub daws yuav yog tus (x, y) xaj khub uas ob kab sib tshuam (hla).
Tom qab ntawd, koj yuav ua li cas daws cov kab zauv sib npaug?
Rau daws ib qho kev sib npaug txhais tau tias nrhiav tau txhua qhov tseem ceeb uas ua rau cov lus muaj tseeb. Rau daws qhov equation graphically , kos cov duab rau txhua sab, cov tswv cuab, ntawm cov kev sib npaug thiab saib qhov twg cov nkhaus hla, sib npaug. Qhov x qhov tseem ceeb ntawm cov ntsiab lus no, yog cov kev daws teeb meem rau qhov kev sib npaug.
Tsis tas li ntawd, graphical method yog dab tsi? Graphical method ntawm linear programming yog siv los daws cov teeb meem los ntawm kev nrhiav qhov siab tshaj plaws lossis qis tshaj ntawm kev sib tshuam ntawm cov hom phiaj ua haujlwm kab thiab thaj tsam ua tau ntawm ib daim duab. Cov txheej txheem no tuaj yeem faib ua 7 kauj ruam yooj yim piav qhia hauv qab no.
Xav txog qhov no, koj yuav ua li cas daws cov kab hluav taws xob los ntawm kev kos duab?
Kev daws ntawm xws li ib tug qhov system yog tus txiav txim khub uas yog kev daws rau ob leeg kev sib npaug . Rau daws ib qhov system ntawm linear equations graphically peb daim duab ob leeg kev sib npaug nyob rau hauv tib lub koom haum qhov system . Txoj kev daws rau lub qhov system yuav nyob rau hauv qhov chaw uas ob kab sib tshuam.
Yuav ua li cas koj nrhiav tau qhov system ntawm equations?
Nov yog qhov nws mus:
- Kauj Ruam 1: Daws ib qho kev sib npaug rau ib qho ntawm qhov sib txawv.
- Kauj Ruam 2: Hloov qhov sib npaug mus rau lwm qhov sib npaug, thiab daws rau x.
- Kauj Ruam 3: Hloov x = 4 x = 4 x = 4 rau hauv ib qho ntawm qhov sib npaug qub, thiab daws rau y.
Pom zoo:
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
Kev daws qhov tsis sib npaug ntawm qhov sib npaug yog zoo ib yam li kev daws cov kab sib npaug. Qhov sib txawv tseem ceeb yog koj tig lub cim tsis sib xws thaum faib lossis muab faib los ntawm tus lej tsis zoo. Graphing linear inequalities muaj ob peb qhov sib txawv ntxiv. Qhov uas yog qhov ntxoov ntxoo muaj xws li qhov tseem ceeb uas qhov kev tsis sib xws ntawm cov kab tawm muaj tseeb
Nws puas yuav ua rau pom qhov sib npaug ntawm kab sib npaug mus rau ib kab thiab los ntawm ib qho taw tes ntawm kab?
Qhov sib npaug ntawm ib kab uas yog parallel lossis perpendicular rau ib kab? Cov lus teb tau: Cov nqes hav ntawm cov kab sib npaug sib npaug. Hloov txoj kab nqes paub thiab cov kev sib koom ua ke ntawm ib qho taw tes ntawm lwm txoj kab rau hauv daim ntawv point-slope kom pom qhov sib npaug ntawm kab sib npaug
Yuav ua li cas koj daws cov zauv complex thiab xav txog zauv?
Cov lej nyuaj muaj daim ntawv a + bi a + b i, qhov twg a thiab b yog cov lej tiag tiag thiab kuv yog lub hauv paus square ntawm & rho tawm 1. Txhua tus lej tiag tuaj yeem sau ua tus lej nyuaj los ntawm kev teeb tsa b = 0. Cov lej xav tau muaj daim ntawv bi thiab tseem tuaj yeem sau ua tus lej nyuaj los ntawm kev teeb tsa a = 0
Puas yog nws ua tau rau ib qho kev sib npaug ntawm ob txoj kab sib npaug kom tsis muaj kev daws teeb meem piav qhia koj qhov laj thawj?
Cov kab ke ntawm kab sib npaug tuaj yeem tsuas muaj 0, 1, lossis ib qho kev daws teeb meem tsis kawg. Ob kab no tsis tuaj yeem hla ob zaug. Cov lus teb raug yog tias qhov system muaj ib qho kev daws teeb meem. Total Number of Points Number of 2-Point Baskets Number of 3-Point Baskets 17 4 (8 ntsiab lus) 3 (9 points) 17 1 (2 points) 5 (15 points)
Dab tsi yog qhov sib txawv ntawm cov kab lus sib npaug thiab qhov sib npaug sib npaug?
Cov kab lus sib npaug muaj qhov muaj txiaj ntsig zoo ib yam tab sis tau nthuav tawm nyob rau hauv ib hom ntawv sib txawv uas siv cov khoom ntawm cov lej xws li ax + bx = (a + b) x yog cov kab lus sib npaug. nruj me ntsis, lawv tsis yog 'sib npaug', yog li peb yuav tsum siv 3 kab sib luag hauv 'sib npaug' es tsis yog 2 raws li qhia ntawm no