Video: Yuav ua li cas koj nrhiav tau qhov sib npaug ntawm ib kab perpendicular mus rau ib tug taw tes?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ua ntej, muab tso rau kev 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 haveopposite-reciprocal slopes, yog li txoj kab nqes ntawm lub kab peb xav nrhiav yog 1 /2. Plug rau hauv taw tes muab rau hauv kev sib npaug y = 1 /2x + b thiab daws rau b, peb tau txais b = 6.
Tib neeg kuj nug, koj yuav ua li cas thiaj nrhiav tau qhov sib npaug ntawm txoj kab nrog ib qho taw tes?
Nrhiav qhov sib npaug ntawm kab muab Tias Koj Paub a Taw tes ntawm Kab Thiab Nws Slope. Cov kev sib npaug ntawm aline feem ntau yog sau li y = mx + b qhov twg m yog txoj kab nqes thiab bis y-intercept. Yog koj a taw tes tias a kab passesthrough, thiab nws txoj kab nqes, nplooj ntawv no yuav qhia koj yuav ua li cas nrhiav qhov sib npaug ntawm kab.
koj yuav daws tau ib txoj kab sib npaug li cas? Yuav nrhiav tau kev sib npaug ntawm ib kab siv 2 ntsiab lus, pib los ntawm nrhiav txoj kab nqes ntawm kab los ntawm pluggingthe 2 teev ntawm kev tswj hwm rau hauv cov qauv rau txoj kab nqes. Tom qab ntawd, ntsaws txoj kab nqes rau hauv txoj kab nqes-intercept formula, lossis y = mx + b, qhov "m" yog txoj kab nqes thiab "x" thiab "y" yog ib txheej ntawm kev tswj hwm ntawm kab.
Kuj nug, kab perpendicular yog dab tsi?
Hauv elementary geometry, cov cuab yeej ntawm kev ua perpendicular (perpendicularity) yog kev sib raug zoo ntawm ob kab uas sib ntsib ntawm lub kaum sab xis (90 degrees). A kab yog hais tias yog perpendicular rau lwm tus kab yog ob tug kab sib tshuam ntawm ib txoj cai.
Dab tsi yog txoj kab nqes tsis tau txhais?
Ib txoj kab nqes tsis meej (los yog loj infinitely txoj kab nqes ) yog txoj kab nqes ntawm ib txoj kab ntsug! Thex-coordinate yeej tsis hloov txawm tias qhov y-coordinate yog dab tsi! Tsis muaj kev khiav! Hauv qhov kev qhia no, kawm txog lub ntsiab lus ntawm txoj kab nqes tsis meej.
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
Yuav ua li cas koj nrhiav tau qhov sib npaug ntawm ib kab uas muab ib tug point thiab ib tug parallel kab?
Qhov sib npaug ntawm kab hauv daim ntawv nqes hav-intercept yog y = 2x + 5. Qhov nqes hav ntawm parallelline yog tib yam: m = 2. Yog li, qhov sib npaug ntawm kab sib npaug yog y = 2x + a. Txhawm rau nrhiav ib qho, peb siv qhov tseeb tias kab yuav tsum dhau los ntawm qhov muab: 5 = (2) ⋅ (− 3) + a
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
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