Cov txheej txheem:

Koj txhais cov ntsiab lus ntawm daim duab li cas?
Koj txhais cov ntsiab lus ntawm daim duab li cas?

Video: Koj txhais cov ntsiab lus ntawm daim duab li cas?

Video: Koj txhais cov ntsiab lus ntawm daim duab li cas?
Video: Saib Mis paub Poj niam (hluas nkauj) tus yam ntxwv lub siab 2024, Hlis ntuj nqeg
Anonim

Yog nug tau txhais a taw tes (x + 1, y + 1), koj txav mus rau sab xis ib chav tsev vim + ntawm x-axis mus rau sab xis, thiab txav mus rau ib chav, vim + ntawm y-axis nce mus.

Tsis tas li ntawd, tus qauv rau kev txhais lus yog dab tsi?

Hauv lub dav hlau coordinate peb tuaj yeem kos tus txhais lus yog tias peb paub cov kev taw qhia thiab deb npaum li cas daim duab yuav tsum txav mus. Rau txhais lub point P(x, y), ib units txoj cai thiab b units, siv P'(x + a, y + b).

Tsis tas li ntawd, kev hloov pauv ua haujlwm li cas? Ib txoj haujlwm kev hloov pauv yuav siv dab tsi yog qhov yooj yim muaj nuj nqi f (x) thiab ces "transforms" nws (los yog "translates" nws), uas yog ib tug zoo nkauj txoj kev uas hais tias koj hloov lub mis me ntsis thiab yog li txav cov duab nyob ib ncig ntawm. Tsiv lub luag haujlwm nqis ua haujlwm tib txoj kev; f (x) โ€“ b yog f (x) txav mus rau b units.

Raws li, dab tsi yog qhov taw tes duab?

Reflection - ib taw tes Qhov muab taw tes P yog "reflected" nyob rau hauv daim iav thiab tshwm nyob rau sab nraud ntawm txoj kab sib npaug ntawm nws. Qhov kev xav ntawm lub taw tes P hla kab yog los ntawm lub rooj sib tham hu ua P' (hais "P prime") thiab hu ua " duab "ntawm taw tes P.

Koj yuav ua li cas hloov ib qho kev ua haujlwm?

Lub luag haujlwm txhais lus / kev hloov pauv txoj cai:

  1. f (x) + b hloov cov haujlwm b mus rau sab saud.
  2. f (x) โ€“ b hloov txoj haujlwm b mus rau nqes.
  3. f (x + b) hloov cov haujlwm b mus rau sab laug.
  4. f (x โ€“ b) hloov cov haujlwm b mus rau sab xis.
  5. -f (x) qhia txog kev ua haujlwm hauv x-axis (uas yog, upside-down).

Pom zoo: