Cov txheej txheem:
Video: Yuav ua li cas koj nrhiav tau qhov sib npaug ntawm ib kab uas muab ib tug point thiab ib tug parallel kab?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov kev sib npaug ntawm kab hauv daim ntawv nqes hav-intercept yog y=2x+5. Txoj kab nqes ntawm parallelline ib:m=2. Yog li, cov kev sib npaug ntawm kab sib npaug y = 2 x + a. Yuav kom nrhiav tau ib, peb siv qhov tseeb hais tias lub kab yuav tsum dhau ntawm qhov muab point :5=(2)⋅(−3)+a.
Kuj paub, koj ua li cas thiaj nrhiav tau qhov sib npaug ntawm cov kab sib txuas uas dhau los ntawm ib qho taw qhia?
Txoj Kev 1: Siv Daim Ntawv Slope Intercept Form
- Hloov txoj kab nqes los ntawm thawj kab (3 hauv qhov no) rau hauv kab zauv y = 3x + b.
- Hloov cov ntsiab lus muab (1, 7) rau hauv x thiab y qhov tseem ceeb 7 = 3(1) + b.
- daws rau b (y-intercept)
- Hloov tus nqi no rau 'b' nyob rau hauv txoj kab nqes intercept formequation y = 3x + 4.
Tsis tas li ntawd, koj sau qhov sib npaug ntawm ib kab los ntawm ib qho point li cas? Cov kev sib npaug ntawm ib kab feem ntau yog sau asy = mx + b qhov twg m yog txoj kab nqes thiab b yog y-intercept. Yog koj a taw tes tias a kab hla dhau , thiab nws txoj kev nqes hav, nplooj ntawv no yuav qhia koj seb yuav nrhiav tau li cas kev sib npaug ntawm kab . Sau cov taw tes tias cov kab hla dhau
Ntxiv mus, kuv yuav ua li cas thiaj nrhiav tau qhov sib npaug ntawm kab sib luag?
Ob kab yog thaum uas tig mus yog tias muaj cov nqes hav zoo ib yam. Piv txwv 1: Nrhiav txoj kab nqes ntawm kab sib npaug mus rau kab 4x – 5y = 12 nrhiav txoj kab nqes ntawm no kab peb yuav tsum tau kab intoslope-intercept form (y = mx + b), uas txhais tau tias peb yuav tsum tau daws fory: Qhov nqes hav ntawm lub kab 4x – 5y = 12 m = 4/5.
Yuav ua li cas koj tsim ib txoj kab uas tig mus rau ib tug muab kab?
Txoj Kev 1 Kos duab kab kab
- Nrhiav cov kab uas tau muab thiab qhov chaw muab.
- Kos ib qho arc uas hla cov kab uas tau muab rau ntawm ob qhov sib txawv.
- Kos ib tug me me arc tawm tsam qhov muab.
- Kos ib qho me me arc sib tshuam rau yav dhau los.
Pom zoo:
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
Kev daws qhov tsis sib npaug ntawm qhov sib npaug yog zoo ib yam li kev daws cov kab sib npaug. Qhov sib txawv tseem ceeb yog koj tig lub cim tsis sib xws thaum faib lossis muab faib los ntawm tus lej tsis zoo. Graphing linear inequalities muaj ob peb qhov sib txawv ntxiv. Qhov uas yog qhov ntxoov ntxoo muaj xws li qhov tseem ceeb uas qhov kev tsis sib xws ntawm cov kab tawm muaj tseeb
Yuav ua li cas koj nrhiav tau qhov sib npaug ntawm kab tangent ntawm ib tug derivative?
1) Nrhiav tus thawj derivative ntawm f(x). 2) Txuas xvalue ntawm qhov taw tes rau hauv f '(x) txhawm rau nrhiav txoj kab nqes ntawm x. 3) Txuas x tus nqi rau f(x) txhawm rau nrhiav y ua haujlwm ntawm qhov taw tes. 4) Muab txoj kab nqes los ntawm kauj ruam 2 thiab taw tes los ntawm kauj ruam 3 siv cov qauv taw tes-qhov nqes hav kom pom qhov sib npaug rau kab tangent
Nws puas yuav ua rau pom qhov sib npaug ntawm kab sib npaug mus rau ib kab thiab los ntawm ib qho taw tes ntawm kab?
Qhov sib npaug ntawm ib kab uas yog parallel lossis perpendicular rau ib kab? Cov lus teb tau: Cov nqes hav ntawm cov kab sib npaug sib npaug. Hloov txoj kab nqes paub thiab cov kev sib koom ua ke ntawm ib qho taw tes ntawm lwm txoj kab rau hauv daim ntawv point-slope kom pom qhov sib npaug ntawm kab sib npaug
Dab tsi yog qhov sib txawv ntawm cov kab lus sib npaug thiab qhov sib npaug sib npaug?
Cov kab lus sib npaug muaj qhov muaj txiaj ntsig zoo ib yam tab sis tau nthuav tawm nyob rau hauv ib hom ntawv sib txawv uas siv cov khoom ntawm cov lej xws li ax + bx = (a + b) x yog cov kab lus sib npaug. nruj me ntsis, lawv tsis yog 'sib npaug', yog li peb yuav tsum siv 3 kab sib luag hauv 'sib npaug' es tsis yog 2 raws li qhia ntawm no
Yuav ua li cas koj nrhiav tau qhov sib npaug ntawm ib tug hyperbola muab Asymptotes thiab foci?
Siv qhov laj thawj saum toj no, qhov sib npaug ntawm cov asymptotes yog y = ±ab(x−h) + k y = ± a b (x − h) + k. Zoo li hyperbolas nyob nruab nrab ntawm lub hauv paus chiv keeb, hyperbolas nyob nruab nrab ntawm qhov taw tes (h, k) muaj vertices, co-vertices, thiab foci uas cuam tshuam los ntawm kab zauv c2 = a2 + b2 c 2 = a 2 + b 2