Cov txheej txheem:
Video: Yuav ua li cas koj qhia yog hais tias ib tug transformation yog ib tug dilation?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kev piav qhia ntawm a dilation suav nrog qhov ntsuas qhov ntsuas (lossis piv) thiab qhov nruab nrab ntawm qhov dilation . Qhov chaw ntawm dilation yog ib qho chaw ruaj khov hauv lub dav hlau. Yog qhov ntsuas qhov ntsuas yog ntau dua 1, daim duab yog qhov loj (qhov ncab). Yog qhov ntsuas qhov ntsuas yog nruab nrab ntawm 0 thiab 1, daim duab yog qhov txo qis (qis).
Hauv qhov no, dab tsi yog qhov dilation scale factor?
A dilation yog ib hom kev hloov pauv uas hloov qhov loj ntawm daim duab. Cov ntsuas qhov ntsuas , qee zaum hu ua scalar yam , ntsuas ntau npaum li cas loj lossis me dua daim duab. Hauv qab no yog ib daim duab ntawm txhua hom dilation (ib qho uas loj dua thiab ib qho me me).
Ib tug kuj nug, ua li cas koj dilate ib daim duab? Feem ntau dilations nyob rau hauv lub dav hlau coordinate siv lub hauv paus, (0, 0), raws li qhov chaw ntawm lub dilation . Pib nrog ΔABC, kos tus daim duab dilation ntawm daim duab peb sab nrog ib qhov chaw ntawm lub hauv paus chiv keeb thiab ib tug scale factor ntawm ob. Daim ntawv ceeb toom tias txhua qhov kev sib koom tes ntawm thawj daim duab peb sab tau muab faib ua qhov ntsuas qhov ntsuas (x2).
Yog li ntawd, koj yuav nrhiav tau ntsug dilation li cas?
Vertical Dilation
- y = C * f(x) Thiab peb kuj tuaj yeem hloov qhov y li y/C hauv qhov sib npaug qub.
- Piv txwv 1: Ua ntsug dilation rau lub luag haujlwm y = x2 nrog qhov ntsuas qhov ntsuas 3.
- Solution: y = x2
- Piv txwv 2: Xaiv qhov dilation ntawm daim duab y = x2 kom tau cov duab ntawm y = 4x2.
- tshuaj:
- Piv txwv 1:
- Kev daws:
- Daim duab.
Koj pom qhov ntsuas qhov ntsuas li cas?
Mus nrhiav ib ntsuas qhov ntsuas nruab nrab ntawm ob daim duab zoo sib xws, nrhiav ob sab sib txuas thiab sau qhov piv ntawm ob sab. Yog tias koj pib nrog daim duab me me, koj ntsuas qhov ntsuas yuav tsawg dua ib. Yog tias koj pib nrog daim duab loj, koj ntsuas qhov ntsuas yuav loj dua ib.
Pom zoo:
Yuav ua li cas koj qhia yog hais tias ib lub ntsiab yog ib tug metalloid?
Lub metalloid yog ib yam khoom uas muaj qhov nruab nrab ntawm cov hlau thiab nonmetals. Metalloids kuj tseem hu ua semimetals. Nyob rau hauv lub sij hawm lub sij hawm, lub ntsiab xim xim daj, uas feem ntau ciam teb rau stair-step kab, yog suav hais tias yog metalloids
Yuav ua li cas koj qhia yog hais tias ib tug khub ntawm ratios tsim ib tug proportions?
Sim xav seb puas yog ob qho piv txwv yog proportional? Yog tias lawv nyob hauv daim ntawv feem, muab lawv sib npaug rau ib leeg los kuaj seb lawv puas yog proportional. Hla multiply thiab simplify. Yog tias koj tau txais cov lus tseeb, ces qhov sib piv yog proportional
Yuav ua li cas koj thiaj paub yog hais tias ib tug function tsis yog ib tug function?
Kev txiav txim siab seb qhov kev sib raug zoo yog qhov ua haujlwm ntawm daim duab yog qhov yooj yim los ntawm kev siv cov kab ntsug. Yog tias txoj kab ntsug hla qhov kev sib raug zoo ntawm daim duab ib zaug hauv txhua qhov chaw, qhov kev sib raug zoo yog qhov ua haujlwm. Txawm li cas los xij, yog tias txoj kab ntsug hla qhov kev sib raug ntau dua ib zaug, qhov kev sib raug zoo tsis muaj nuj nqi
Yuav ua li cas ib tug geologist yuav qhia tau hais tias ib tug quav yog ib tug syncline thiab anti-line?
Geologic Structures (Part 5) Anticlines yog folds nyob rau hauv uas txhua ib nrab ntawm cov quav dips deb ntawm lub crest. Synclines yog folds nyob rau hauv uas txhua ib nrab ntawm cov quav dips mus rau lub trough ntawm lub quav. Koj tuaj yeem nco qab qhov sib txawv los ntawm kev ceeb toom tias anticlines tsim "A" zoo, thiab synclines tsim hauv qab ntawm "S."
Yuav ua li cas koj qhia yog hais tias ib tug piecewise graph yog ib tug muaj nuj nqi?
Yuav Qhia Li Cas Yog Piecewise Function yog Nruam lossis Tsis Txuas Ntxiv. Txhawm rau qhia yog tias daim duab sib txuas tsis tu ncua lossis tsis txuas ntxiv, koj tuaj yeem saib cov ntsiab lus ciam teb thiab pom tias y point yog tib yam ntawm lawv txhua tus.(Yog tias y's txawv, yuav muaj "dhia" hauv daim duab !)