Cov txheej txheem:

Yuav ua li cas koj pom qhov tas li ntawm proportionality hauv ib daim duab?
Yuav ua li cas koj pom qhov tas li ntawm proportionality hauv ib daim duab?

Video: Yuav ua li cas koj pom qhov tas li ntawm proportionality hauv ib daim duab?

Video: Yuav ua li cas koj pom qhov tas li ntawm proportionality hauv ib daim duab?
Video: Cas koj tsis yuav lwm xeem by Vong Media 2020-2021 2024, Kaum ib hlis
Anonim

Txhawm rau nrhiav koj qhov tsis tu ncua ntawm proportionality los ntawm ib daim duab, ua raws li cov kauj ruam no:

  1. Nrhiav ob lub ntsiab lus yooj yim.
  2. Pib nrog tus taw tes laug kawg thiab suav pes tsawg squares koj yuav tsum tau nce mus rau koj qhov chaw thib ob.
  3. Suav pes tsawg squares koj yuav tsum mus rau sab xis.
  4. Simplify, thiab koj twb nrhiav tau koj tsis tu ncua ntawm proportionality .

Ib yam li ntawd, tib neeg nug, ua li cas koj pom qhov tsis tu ncua ntawm proportionality?

Cov tsis tu ncua ntawm proportionality k yog muab los ntawm k = y / x qhov twg y thiab x yog ob qhov ntau uas ncaj qha proportional rau ib leeg. Thaum koj paub cov tsis tu ncua ntawm proportionality Koj tuaj yeem pom qhov sib npaug uas sawv cev ncaj qha kev sib raug zoo ntawm x thiab y, uas yog y = kx, nrog koj qhov tshwj xeeb k.

Ib sab saum toj no, koj yuav ua li cas pom qhov tsis tu ncua ntawm proportionality Khan Academy? Y yog sib npaug rau qee qhov tas li lub sij hawm X. Thiab qhov ntawd tas li , yog peb tsis tu ncua ntawm proportionality , nyob ntawd. Qee zaum koj yuav saib qhov no qhia, yog tias koj faib ob sab los ntawm X, qee zaum koj yuav saib qhov no yog Y tshaj X, sib npaug rau tus tsis tu ncua ntawm proportionality.

Ib yam li ib tug yuav nug, dab tsi yog qhov tsis tu ncua hauv daim duab?

Hauv lej, a tas li muaj nuj nqi yog ib txoj haujlwm uas nws (tso tawm) tus nqi yog tib yam rau txhua tus nqi nkag. Piv txwv li, txoj haujlwm yog a tas li ua haujlwm vim tus nqi ntawm yog 4 tsis hais tus nqi nkag. (saib daim duab).

Lub ntsiab txhais ntawm qhov tsis tu ncua ntawm proportionality hauv lej yog dab tsi?

n cov tas li tus nqi ntawm qhov ratio ntawm ob proportional ntau ntau x thiab y; feem ntau sau y = kx, qhov twg k yog qhov tseem ceeb ntawm proportionality . Synonyms: factor of proportionality Hom: Planck's tas li , h.

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