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Video: Yuav ua li cas koj xam ib tug exponential equation?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nrhiav qhov sib npaug ntawm ib qho kev ua exponential
- Yog tias ib qho ntawm cov ntaub ntawv cov ntsiab lus muaj daim ntawv (0, a), ces a yog tus nqi pib.
- Yog tias tsis muaj cov ntsiab lus ntawm cov ntaub ntawv muaj daim ntawv (0, a), hloov ob lub ntsiab lus ua ob kev sib npaug with the form f (x) = a (b) x displaystyle fleft(x ight)=a{left(b ight)}^{x} f(x)=a(b)x?.
Piv txwv li, txoj kab nqes ntawm ib qho exponential muaj nuj nqi yog dab tsi?
Cov exponential muaj nuj nqi f(x) = ex muaj ntawm txhua tus lej x tib " txoj kab nqes "raws li tus nqi ntawm f(x). Piv txwv li, ntawm x = 0, lub txoj kab nqes f(x) = ex yog f(0) = e0 = 1.
Tom qab ntawd, lo lus nug yog, ua li cas koj sau ib qho kev sib npaug muab ob lub ntsiab lus? Kev sib npaug ntawm 2 cov ntsiab lus siv Slope Intercept Form
- xam qhov nqes hav ntawm 2 ntsiab lus.
- Hloov qhov taw tes rau hauv qhov sib npaug. Koj tuaj yeem siv (3, 7) lossis (5, 11)
- daws rau b, uas yog y-intercept ntawm kab.
- Hloov b, -1, rau hauv kab zauv los ntawm kauj ruam 2.
Yog li ntawd, A thiab B yog dab tsi nyob rau hauv ib tug exponential muaj nuj nqi?
ua ib. exponential muaj nuj nqi qhov twg " b ” yog nws qhov kev hloov pauv (lossis qhov tsis tu ncua), tus exponent. "x" yog qhov sib txawv ntawm tus kheej (los yog cov tswv yim ntawm cov muaj nuj nqi ), tus coefficient "a" yog. hu ua tus nqi pib ntawm tus muaj nuj nqi (los yog y-intercept), thiab "f(x)" sawv cev rau qhov sib txawv ntawm qhov sib txawv (los yog cov zis ntawm muaj nuj nqi ).
Koj sau ib qho kev sib npaug ntawm kab li cas?
Cov kev sib npaug ntawm ib kab feem ntau yog sau li y = mx + b qhov twg m yog txoj kab nqes thiab b yog y-intercept. Yog koj paub ob lub ntsiab lus ntawd a kab hla dhau, nplooj ntawv no yuav qhia koj yuav ua li cas nrhiav tau kev sib npaug ntawm kab . Sau ib qho ntawm cov ntsiab lus uas cov kab hla dhau
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