Video: Yuav ua li cas koj nrhiav tau qhov sib npaug perpendicular?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ua ntej, muab tso rau kev sib npaug ntawm cov kab uas tau muab rau hauv daim ntawv-kev cuam tshuam los ntawm kev daws rau y. Koj tau txais y = 2 x + 5, yog li theslope yog -2. Perpendicular cov kab muaj qhov tsis sib thooj-ncig, yog li txoj kab nqes ntawm txoj kab peb xav pom yog 1/2. Plug nyob rau hauv lub point muab rau hauv lub kev sib npaug y = 1/2 x + b thiab daws b, peb tau b = 6.
Ua raws li qhov no hauv kev txiav txim siab, koj ua li cas thiaj nrhiav tau ib txoj kab nqes perpendicular?
Rau nrhiav tus txoj kab nqes ntawm qhov muab kab weneed kom tau kab rau hauv txoj kab nqes -intercept form (y = mx + b), uas txhais tau tias peb yuav tsum tau daws rau y: The txoj kab nqes 4x – 5y = –10 m = 4/5. Yog li ntawd, lub txoj kab nqes ntawm kab perpendicular rau kab no yuav tsum yog m = – 5/4. Kauj ruam 2: Siv lub txoj kab nqes rau nrhiav lawv-intercept.
Qhov thib ob, qhov piv txwv perpendicular yog dab tsi? Perpendicular - Txhais nrog Piv txwv Ob kab sib txawv ntawm ib leeg ntawm 90 ° lossis lub kaum sab xis yog hu ua perpendicular kab. Piv txwv : AB is perpendicular rau XY vim ABand XY sib tshuam ntawm 90 °. Tsis- Piv txwv : Ob txoj kab sib tshuam ib leeg ntawm ib qho acuteangle.
Tom qab ntawd, lo lus nug yog, ua li cas koj pom qhov sib npaug ntawm qhov perpendicular bisector?
Sau ib kev sib npaug rau hauv point-slope form, y - k = m(x - h), vim txoj kab nqes ntawm qhov perpendicular bisector anda point (h, k) lub bisector mus dhau yog paub. daws qhov point-slope kev sib npaug rau y = mx + b. Txav lub kvalue mus rau sab xis ntawm lub kev sib npaug.
Yuav ua li cas koj thiaj paub tias kab yog parallel los yog perpendicular?
Yog cov nqes hav yog tib yam thiab cov y-intercepts sib txawv, cov kab yog parallel . Yog cov slopesare txawv, cov kab tsis yog thaum uas tig mus . Tsis zoo li kab sib npaug , kab perpendicular Ua kev sib tshuam. Lawv kev sib tshuam ua rau txoj cai, lossis 90-degree, lub kaum sab xis.
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 ib kab perpendicular mus rau ib tug taw tes?
Ua ntej, muab qhov sib npaug ntawm kab muab rau hauv daim ntawv nqes hav-intercept los ntawm kev daws rau y. Koj tau txais y = 2 x + 5, txoj kab nqes yog -2. Perpendicular kab muaj qhov tsis sib thooj-reciprocal slopes, yog li txoj kab nqes ntawm txoj kab peb xav pom yog 1/2. Txuas lub ntsiab lus muab rau hauv qhov sib npaug y = 1/2x + b thiab daws rau b, peb tau txais b = 6
Puas yog txhua qhov sib npaug sib npaug sib npaug?
Thawj qhov sib npaug sib npaug yog qhov tseeb yog tias nws muaj kev txuag kom muaj nuj nqis. Piv txwv li, qhov sib npaug sib cais yeej ib txwm muaj tseeb, txij li lub ntsiab lus lawv yog ntawm daim ntawv: M(y) + N(t) = 0, yog li ϕ(t, y) = A(y) + B(t) yog a khaws cia kom muaj nuj nqis
Yuav ua li cas koj nrhiav tau qhov sib npaug ntawm lub perpendicular bisector ntawm ib kab segment?
Sau ib qho kev sib npaug rau hauv point-slope daim ntawv, y - k = m (x - h), vim txoj kab nqes ntawm perpendicular bisector anda point (h, k) bisector mus dhau los paub. daws qhov sib npaug ntawm qhov taw tes rau y kom tau y = mx + b. Distribute theslope tus nqi. Txav tus nqi k mus rau sab xis ntawm qhov 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