Video: Daim duab ntawm ib qho kev sib npaug quadratic zoo li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov graph ntawm ib quadratic muaj nuj nqi yog ua U- zoo li tus nkhaus hu ua parabola. Nws tuaj yeem yog kos los ntawm plotting kev daws teeb meem rau cov kev sib npaug , los ntawm kev nrhiav lub vertex thiab siv lub axis ntawm symmetry rau cov lus xaiv cov ntsiab lus, los yog los ntawm kev nrhiav cov hauv paus hniav thiab vertex. Tus qauv qauv ntawm a quadratic equation yog.
Hais txog qhov no, daim duab ntawm lub quadratic zoo li cas?
Cov graph ntawm ib quadratic muaj nuj nqi yog ua U- zoo li tus nkhaus hu ua parabola. Kos npe rau ntawm tus coefficient a plaub fab muaj nuj nqi cuam tshuam seb lub daim duab qhib los yog down. X-intercepts yog cov ntsiab lus ntawm parabola hla lub x-axis.
Qhov thib ob, K hauv daim ntawv qauv yog dab tsi? f (x) = a(x - h)2 + k , qhov twg (h, k ) yog lub vertex ntawm lub parabola. FYI: Cov phau ntawv sib txawv muaj kev txhais lus sib txawv ntawm kev siv " txheem daim ntawv " ntawm ib lub quadratic function. (h, k ) yog lub vertex ntawm parabola, thiab x = h yog axis ntawm symmetry.
Yog li ntawd, ua li cas koj thiaj paub yog tias ib daim duab yog quadratic?
Yog qhov txawv yog tas li, lub daim duab yog linear. Yog qhov sib txawv tsis tas li tab sis qhov thib ob txheej ntawm qhov sib txawv yog tas li, lub graph yog quadratic . Yog qhov sib txawv ua raws tus qauv zoo ib yam li y-tus nqi, tus daim duab yog exponential. Saib cov piv txwv hauv qab no kom pom tseeb.
Dab tsi yog qhov zoo ntawm parabola?
Hauv lej, a parabola yog lub dav hlau nkhaus uas yog daim iav-symmetrical thiab yog kwv yees li U-puab.
Pom zoo:
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
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Puas yog Goode's interrupted Homolosine projection ib qho kev pom zoo lossis sib npaug ntawm thaj tsam sib npaug?
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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?
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