Qhov siab tshaj plaws lossis qhov tsawg kawg nkaus ntawm parabola yog dab tsi?

Video: Qhov siab tshaj plaws lossis qhov tsawg kawg nkaus ntawm parabola yog dab tsi?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Ntsug parabolas muab ib qho tseem ceeb ntawm cov ntaub ntawv: Thaum lub parabola opens, lub vertex yog thelowest taw tes ntawm daim duab - hu ua yam tsawg kawg nkaus , los yog min. Thaum lub parabola opens down, lub vertex yog qhov siab tshaj plaws taw tes ntawm daim duab - hu ua siab kawg , los yog max.

Tib neeg kuj nug, ua li cas koj paub tias nws qhov siab tshaj plaws lossis qhov tsawg kawg nkaus?

Daim ntawv dav dav ntawm qhov sib npaug ntawm parabola yog: Saib cov coefficient ntawm lub sij hawm, uas yog a, thiab Yog a > 0 (zoo), ces tus parabola qhib upward thiab daim duab muaj a yam tsawg kawg nkaus ntawm nws vertex. Yog a <0 (tsis zoo), ces lub parabola qhib downward thiab daim duab muaj a siab kawg ua vertex.

Ib tug kuj yuav nug, dab tsi yog qhov ntau ntawm parabola? Cov txiaj ntsig ntawm a, b, thiab c txiav txim siab cov duab thiab qhov chaw ntawm qhov parabola . Lub npe ntawm ib txoj haujlwm yog theset ntawm tag nrho cov txiaj ntsig tiag tiag ntawm x uas yuav muab cov txiaj ntsig tiag tiag rau y. Cov ntau ntawm ib txoj haujlwm yog cov txheej txheem ntawm tag nrho cov txiaj ntsig tiag tiag ntawm y uas koj tuaj yeem tau txais los ntawm kev ntsaws cov lej tiag rau x. Lub quadratic parentfunction yog y = x².

Kuj kom paub yog, dab tsi yog qhov ua haujlwm yam tsawg kawg nkaus lossis tus nqi siab tshaj?

Cov yam tsawg kawg los yog siab tshaj ntawm a muaj nuj nqi tshwm sim thaum qhov nqes hav yog xoom. Yog li ntawd, nrhiav qhov twg yam tsawg kawg los yog siab tshaj tshwm sim, teem lub derivative sib npaug tozero.

Dab tsi yog qhov hloov pauv ntawm parabola hu ua?

Nyob rau hauv ob qho tib si, lub vertex yog a tig point ntawm graph. Daim duab kuj yog symmetric nrog ib txoj kab ntsug kos los ntawm vertex, hu ua lub axis ntawm symmetry. Lub y-intercept yog tus taw tes ntawm qhov twg parabola hla y axis. X-intercepts yog cov cov ntsiab lus ntawm qhov twg parabola hla lub x-axis.

Pom zoo:

Dab tsi yog rau qhov sib txawv loj ntawm lub koom haum los ntawm qhov tsawg tshaj plaws mus rau loj tshaj plaws ecologists?

Lub koom haum loj yog dab tsi, los ntawm qhov tsawg tshaj plaws mus rau qhov loj, uas cov kws tshawb fawb feem ntau kawm? 6 theem sib txawv ntawm lub koom haum uas ecologists nquag kawm yog hom, pejxeem, zej zog, ecosystem, thiab biome

Qhov siab tshaj plaws thiab qhov tsawg kawg nkaus hauv lej yog dab tsi?

Hauv kev ua lej, qhov siab tshaj plaws thiab qhov tsawg kawg nkaus ntawm qhov muaj nuj nqi yog qhov loj tshaj plaws thiab qhov tsawg tshaj plaws uas qhov kev ua haujlwm yuav siv ntawm ib qho chaw. Yam tsawg kawg txhais tau tias qhov tsawg tshaj plaws koj tuaj yeem ua tau ib yam dab tsi

Tus txheeb ze yam tsawg kawg nkaus thiab qhov siab tshaj plaws yog dab tsi?

Ib qho piv txwv siab tshaj plaws yog qhov taw tes uas qhov kev ua haujlwm hloov pauv kev coj ua los ntawm kev nce mus rau qis (ua qhov taw tes rau 'peak' hauv daim duab). Ib yam li ntawd, qhov txheeb ze qhov tsawg kawg nkaus yog qhov taw tes uas qhov kev ua haujlwm hloov pauv kev taw qhia los ntawm kev txo qis mus rau nce (ua qhov taw tes ntawd 'hauv qab' hauv daim duab)

Puas yog lub hom phiaj ua haujlwm ib txwm muaj qhov siab tshaj plaws lossis tsawg kawg?

Lub Hom Phiaj Ua Haujlwm Nws tuaj yeem muaj tus nqi siab tshaj plaws, tus nqi qis kawg, ob qho tib si, lossis tsis yog. Nws tag nrho yog nyob ntawm thaj tsam ua tau. Muaj ob hom kev sib txawv ntawm cheeb tsam: thaj tsam uas muaj ciam teb thiab tsis muaj thaj tsam. Qhov tsawg kawg nkaus lossis siab tshaj tus nqi ntawm lub hom phiaj ua haujlwm ib txwm tshwm sim ntawm qhov chaw ntawm thaj tsam ua tau