Dab tsi yog qhov sib npaug ntawm txoj kab ntsug hla qhov taw tes (- 4 7?

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

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.

Ntxiv mus, dab tsi yog qhov sib npaug ntawm txoj kab ntsug uas mus txog qhov taw tes (- 4 0?

Ib x- cuam tshuam yog cov 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 qhov taw tes (4, 0). Koj tuaj yeem sau qhov sib npaug li x = 4.

Ib yam li ntawd, qhov sib npaug ntawm kab rov tav hla lub point − 7 5) yog dab tsi? Kab rov tav kab yog y =, vim tias txhua qhov taw tes raws kab kab rov tav yuav muaj tib yam y tus nqi . Yog li, tam sim no saib lub ntsiab lus thiab pom tias y tus nqi yog 5. Yog li kab rov tav nrog a y tus nqi 5 yog y = 5.

Ib yam li ntawd, koj tuaj yeem nug, qhov sib npaug ntawm txoj kab ntsug ntawm (- 8 5 yog dab tsi?

Cov kev sib npaug rau tej kab ntsug yog x = n. N yog qhov x hauv (x, y) kev tswj hwm, uas txhais tau hais tias koj tuaj yeem tsis nco qab txog y kev tswj hwm. Yog li cov kev sib npaug ntawm kab ntsug rau (-8 , 5 ) x = - 8 . Yog koj xav ( 8 , 5 ) ces cov lus teb yuav yog x = 8.

Tus qauv rau kab ntsug yog dab tsi?

Cov kev sib npaug ntawm a kab ntsug ib txwm siv daim ntawv x = k, qhov twg k yog tus lej thiab k kuj yog x-intercept. (link) Piv txwv li hauv daim duab hauv qab no, tus kab ntsug muaj cov kev sib npaug x = 2 Raws li koj tuaj yeem pom hauv daim duab hauv qab no, qhov kab mus ncaj nce thiab nqis ntawm x = 2.