Video: 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?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
tus kev sib npaug ntawm ib kab uas yog parallel los yog perpendicular mus rau ib tug muab kab ? Cov lus teb tau: Cov nqes hav ntawm kab sib npaug sib npaug. Hloov cov nqes hav uas paub thiab qhov chaw ua haujlwm ntawm a taw tes ntawm lwm yam kab rau hauv taw tes -slope form to nrhiav qhov sib npaug ntawm kab sib npaug.
Hauv qhov no, koj yuav sau ib qho kev sib npaug li cas rau ib kab?
Ob kab yog thaum uas tig mus yog tias muaj tib txoj kab nqes. Piv txwv 1: Nrhiav txoj kab nqes ntawm lub kab parallel mus rau kab 4x – 5y = 12. Kom nrhiav tau txoj kab nqes ntawm no kab peb yuav tsum tau kab rau hauv nqes hav-intercept daim ntawv (y = mx + b), uas txhais tau tias peb yuav tsum tau daws rau y: Txoj kab nqes ntawm lub kab 4x – 5y = 12 m = 4/5.
Dab tsi yog qhov sib npaug ntawm kab perpendicular? Qhov muab kev sib npaug yog nyob rau hauv tus qauv daim ntawv, yog li nws yuav tsum tau hloov dua siab tshiab rau txoj kab nqes-intercept daim ntawv: y = mx + b kom pom qhov nqes hav yog -2/3. Ua perpendicular txoj kab nqes tshiab yuav tsum yog 3/2 (tawm tsam ntawm txoj kab nqes qub).
Qhov thib ob, qhov sib npaug ntawm txoj kab uas hla lub hauv paus chiv keeb thiab sib npaug li cas?
Cov qauv ntawm kab yog y = mx + b. vim txoj kab uas peb tab tom nrhiav yog parallel rau saum toj no uas qhia peb tias txoj kab nqes yog tib yam. Cov kab uas nws qhov sib npaug peb xav mus los ntawm lub hauv paus chiv keeb uas muab lub ntsiab lus (0, 0) thiab peb paub qhov txoj kab nqes m = 2/17.
Cov kab no puas yog perpendicular?
Piav: Ob kab yog perpendicular yog tias thiab tsuas yog lawv cov nqes hav yog qhov tsis zoo sib xws. Nrhiav tus txoj kab nqes, peb yuav tsum tso tus equation rau hauv nqes hav-intercept daim ntawv,, qhov sib npaug tus txoj kab nqes ntawm txoj kab . Yog li ntawd, ib qho kab perpendicular yuav tsum muaj nqes hav.
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
Yuav ua li cas koj nrhiav tau qhov sib npaug ntawm ib kab perpendicular mus rau ib tug taw tes?
Ua ntej, muab qhov sib npaug ntawm kab muab rau hauv daim ntawv nqes hav-intercept los ntawm kev daws rau y. Koj tau txais y = 2 x + 5, txoj kab nqes yog -2. Perpendicular kab muaj qhov tsis sib thooj-reciprocal slopes, yog li txoj kab nqes ntawm txoj kab peb xav pom yog 1/2. Txuas lub ntsiab lus muab rau hauv qhov sib npaug y = 1/2x + b thiab daws rau b, peb tau txais b = 6
Dab tsi yog thawj kauj ruam ntawm kev tsim ib qho perpendicular los ntawm ib qho taw tes mus rau kab?
Txuas tus taw tes rau qhov taw tes uas cov arcs sib tshuam. Siv ib tug straightedge los xyuas kom meej cov kab yog ncaj. Txoj kab koj kos yog perpendicular rau thawj kab, los ntawm qhov muab taw tes rau ntawm kab
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