Cov txheej txheem:
Video: Koj pom qhov sib npaug ntawm ib qho point li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nrhiav tus Kev sib npaug ntawm ib kab uas koj paub a Taw tes ntawm Kab Thiab Nws txoj kab nqes. Cov kev sib npaug ntawm ib kab feem ntau sau li y = mx + b qhov twg m yog txoj kab nqes thiab b yog y-intercept. Yog koj a taw tes tias ib kab hla dhau, thiab nws txoj kab nqes, nplooj ntawv no yuav qhia koj seb yuav nrhiav tau li cas kev sib npaug ntawm kab.
Nyob rau hauv no txoj kev, koj yuav nrhiav tau qhov sib npaug ntawm ib tug muab point?
Kev sib npaug ntawm 2 cov ntsiab lus siv Slope Intercept Form
- xam qhov nqes hav ntawm 2 ntsiab lus.
- Hloov qhov taw tes rau hauv qhov sib npaug. Koj tuaj yeem siv (3, 7) lossis (5, 11)
- daws rau b, uas yog y-intercept ntawm kab.
- Hloov b, -1, rau hauv kab zauv los ntawm kauj ruam 2.
Ib yam li ntawd, koj yuav daws qhov system ntawm kev sib npaug li cas? Ua raws li cov kauj ruam los daws qhov teeb meem.
- Kauj Ruam 1: Muab tag nrho thawj qhov sib npaug los ntawm 2.
- Kauj Ruam 2: Rov sau cov txheej txheem ntawm kev sib npaug, hloov thawj qhov sib npaug nrog cov kab zauv tshiab.
- Kauj Ruam 3: Ntxiv qhov sib npaug.
- Kauj ruam 4: daws rau x.
- Kauj Ruam 5: Nrhiav y-tus nqi los ntawm kev hloov hauv 3 rau x hauv qhov sib npaug.
Ib yam li ntawd, tej zaum koj yuav nug, koj yuav nrhiav tau qhov sib npaug ntawm kab li cas?
Yuav nrhiav tau kev sib npaug ntawm ib kab siv 2 ntsiab lus, pib los ntawm nrhiav txoj kab nqes ntawm kab los ntawm plugging 2 teev ntawm kev tswj hwm rau hauv qauv rau txoj kab nqes. Tom qab ntawd, ntsaws txoj kab nqes rau hauv txoj kab nqes-intercept qauv , los yog y = mx + b, qhov "m" yog txoj kab nqes thiab "x" thiab "y" yog ib txheej ntawm kev tswj hwm ntawm kab.
Yuav ua li cas koj pom qhov nqes hav cuam tshuam daim ntawv ntawm ib qho kev sib npaug?
Sau ib kev sib npaug hauv txoj kab nqes - cuam tshuam daim ntawv , muab ib daim duab ntawm qhov ntawd kev sib npaug , xaiv ob lub ntsiab lus ntawm kab thiab siv lawv rau nrhiav tus txoj kab nqes . Qhov no yog tus nqi ntawm m nyob rau hauv lub kev sib npaug . Tom ntej no, nrhiav lub coordinates ntawm y- cuam tshuam --Qhov no yuav tsum yog ntawm cov daim ntawv (0, ib.). Tus y-coordinate yog tus nqi ntawm b nyob rau hauv lub kev sib npaug.
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
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)
Yuav ua li cas koj pom qhov sib npaug ntawm qhov nqus ntawm qhov nqus?
X = [Fe(SCN)2+] thiab yuav tsum tau txiav txim los ntawm tus qauv nkhaus. Tom qab ntawd koj tuaj yeem xam qhov sib npaug tas li, Keq, siv qhov sib npaug sib npaug. Tus qauv nkhaus yog ib zajlus ntawm Absorbance piv [Fe(SCN)2+] (Daim duab 8.1). Nws tuaj yeem siv los muab peb cov concentration ntawm cov tshuaj thaum muab cov absorbance
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