Video: Ob yam dab tsi yuav tsum muaj daim duab qhia tias koj ua proportional?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A daim duab ntawm a proportional kev sib raug zoo yog ib txoj kab ncaj nraim uas hla lub ntsiab lus (0, 0), lub ntsiab lus thaum ib qho muaj nqi ntawm 0, lwm qhov yuav tsum ib yam nkaus.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog ob txoj cai rau ib daim duab kom proportional?
Txiav txim seb ob ntau yog nyob rau hauv a proportional kev sib raug zoo, piv txwv li, los ntawm kev sim rau qhov sib npaug sib npaug hauv ib lub rooj lossis daim duab ntawm ib lub dav hlau coordinate thiab soj ntsuam seb lub daim duab yog ib txoj kab ncaj nraim los ntawm keeb kwm.
Ib sab saum toj, dab tsi yog proportionality tas li? Cov tas li ntawm proportionality yog qhov ratio ntawm ob ncaj proportional kom muaj nuj nqis. Hauv peb cov piv txwv txiv lws suav, qhov piv yog $ 3.00 / 2, uas sib npaug $ 1.50. Ob qhov ntau yog ncaj qha proportional thaum lawv nce thiab txo tus nqi tib yam.
Ntawm no, dab tsi yog proportional rau ib daim duab?
Qhov no txhais tau hais tias thaum x nce, y nce thiab raws li x txo, y txo qis-thiab qhov sib piv ntawm lawv ib txwm nyob twj ywm tib yam. Cov daim duab ntawm proportional kev sib npaug sib npaug yog ib txoj kab ncaj nraim los ntawm lub hauv paus chiv keeb.
Tus nqi hloov pauv yog dab tsi?
Rate of Change . A tus nqi hloov yog a tus nqi uas piav qhia txog ib qhov ntau npaum li cas kev hloov nyob rau hauv kev sib raug rau lwm qhov ntau. Yog tias x yog qhov hloov pauv ywj pheej thiab y yog qhov hloov pauv hloov, ces. tus nqi hloov = hloov hauv y hloov hauv x. Tus nqi hloov tuaj yeem yog qhov zoo lossis tsis zoo.
Pom zoo:
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