Video: Dab tsi yog qhov sib npaug ntawm kab ntsug (- 8 5?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov kev sib npaug rau tej kab ntsug yog x = n. N yog qhov x hauv (x, y) kev tswj hwm, uas txhais tau tias koj tuaj yeem tsis nco qab txog y kev tswj hwm. Yog li cov kev sib npaug ntawm a kab ntsug rau (-8 , 5 ) x = - 8 . Yog koj xav ( 8 , 5 ) ces cov lus teb yuav yog x = 8.
Ib yam li ntawd, koj tuaj yeem nug, dab tsi yog qhov sib npaug ntawm txoj kab ntsug hla (- 5?
Vim qhov no yog ib kab ntsug , sab laug yuav yog x. Qhov no kuj txhais tau tias peb tuaj yeem tsis quav ntsej tus nqi y. Qhov kev sib koom ua ke qhia tias tus nqi x yog ib txwm − 5 , yog li ntawd kab yog x=- 5.
Tsis tas li ntawd, qhov sib npaug ntawm txoj kab ntsug uas hla dhau yog dab tsi? X-intercept yog qhov tus nqi ntawm x thaum y = 0. Raws li peb twb tau hais lawm, rau ib qho twg tus nqi ntawm y, x = 4. Yog li ntawd, txoj kab ntsug no yuav dhau los ntawm taw tes (4, 0). Koj tuaj yeem sau qhov sib npaug li x = 4.
Kuj tseem yuav paub, qhov sib npaug ntawm txoj kab ntsug ntawm (- 8 10?
Dab Tsi Yog Qhov Kev sib npaug ntawm Ib Kab Ntxig Los Ntawm (-8 , 10 ) Cov kev sib npaug ntawm kab ntsug tsis tuaj yeem hais tawm hauv Slope-Intercept daim ntawv ntawm ib qho kev sib npaug (vim txoj kab nqes yog undefined). Txawm li cas los xij, Standard Form ntawm ib kev sib npaug [Ax + By = C] muaj qhov zoo ntawm kev piav qhia qhov no zoo heev (nrog A = 1 thiab B = 0). x = - 8.
Dab tsi yog qhov sib npaug ntawm txoj kab ntsug hla qhov taw tes (- 4 7?
tus kev sib npaug ntawm kab rov tav hla dhau ( 4 , 7 ) yog y = 7 . Lus Cim - Cov kev sib npaug ntawm kab ntsug yog ib txwm ntawm hom x = k thiab li no tus kev sib npaug ntawm ntsug kab hla dhau ( 4 , 7 ) yog x = 4.