Video: Y 2x txhais li cas?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov teeb meem nrov. Teeb duab y = 2x ib . y = 2x ib . Siv daim ntawv nqes hav-intercept los nrhiav txoj kab nqes thiab y-intercept. Daim ntawv nqes hav-intercept yog y = mx + b y = m x + b, qhov twg m m yog txoj kab nqes thiab b b yog y-intercept.
Tsis tas li, koj yuav daws li cas y 2x?
- Txhawm rau nrhiav y-tus nqi, peb tuaj yeem ntsaws x = 2 rau hauv qhov sib npaug thib ob thiab daws rau y.
- Plug x = 2 rau 2x+y = 6.
- Muab ob npaug ua ke, thiab koj yuav tau 4+y = 6.
- Rho tawm 4 los ntawm ob sab thiab koj tau y = 2.
Ib tug kuj yuav nug, Y intercept ntawm Y 2x yog dab tsi? Cov nqes hav - cuam tshuam form yog y = mx+b y = m x + b, qhov twg m yog nqes hav a b yog y - cuam tshuam . Siv cov nqes hav - cuam tshuam form, ua y - cuam tshuam yog 0.
Ntawm no, Y 2x 1 txhais li cas?
Piv txwv: y = 2 x + 1 yog linear equation: Daim duab ntawm y = 2 x + 1 yog ib txoj kab ncaj nraim. Thaum x nce, y nce ob zaug sai dua, yog li peb xav tau 2x. Thaum x yog 0, y twb yog 1. Yog li +1 kuj tseem xav tau. Thiab yog li ntawd: y = 2 x + 1.
Y 2 x 3 ntawm kab ntawv yog dab tsi?
Piav qhia: y = 2 x - 3 yog nyob rau hauv daim ntawv nqes hav cuam tshuam rau txoj kab zauv, y = mx+b, qhov twg m yog txoj kab nqes thiab b yog y - cuam tshuam. Cov y -intercept yog lub ntsiab lus uas x = 0 thiab y =− 3 , uas yog point (0, − 3 ) Koj tuaj yeem npaj cov ntsiab lus no ntawm koj teeb duab . Lub ntsiab lus tom ntej yuav pom los ntawm kev nce 2 thiab ntau dua 1.
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