Video: Dab tsi yog axis ntawm symmetry?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Daim duab ntawm ib qho kev ua quadratic yog parabola. Cov axis ntawm symmetry ntawm parabola yog ib txoj kab ntsug uas faib cov parabola rau hauv ob qho tib si sib xyaw. Cov axis ntawm symmetry ib txwm dhau los ntawm vertex ntawm parabola. Lub x-coordinate ntawm lub vertex yog qhov sib npaug ntawm qhov axis ntawm symmetry ntawm parabola.
Ua kom pom qhov no, txhais li cas ntawm axis ntawm symmetry?
Axis ntawm Symmetry . ntxiv Ib kab los ntawm ib qho duab kom txhua sab yog daim iav duab. Thaum cov duab yog folded nyob rau hauv ib nrab raws li axis ntawm symmetry , ces ob halves match up.
Ib yam li ntawd, koj yuav pom qhov vertex thiab axis ntawm symmetry li cas? Cov Vertex Daim ntawv ntawm kev ua haujlwm plaub yog muab los ntawm: f(x) = a(x−h)2 + k, qhov twg (h, k) yog Vertex ntawm parabola. x = h yog axis ntawm symmetry . Siv ua kom tiav txoj kev square los hloov f(x) rau hauv Vertex Daim ntawv.
Ntxiv mus, dab tsi yog qhov axis ntawm symmetry piv txwv?
Ob sab ntawm ib daim duab ntawm ob sab ntawm lub axis ntawm symmetry zoo li daim iav duab ntawm ib leeg. Piv txwv : Qhov no yog daim duab ntawm parabola y = x2 - 4x + 2 ua ke nrog nws axis ntawm symmetry x = 2 axis ntawm symmetry yog txoj kab liab ntsug.
Dab tsi yog vertex formula?
y = a(x – h)2 + k, qhov twg (h, k) yog qhov vertex . hauv y = ax2 + bx + c (uas yog, ob qho tib si a's muaj qhov zoo ib yam). Daim paib ntawm "a" qhia koj seb lub quadratic qhib lossis qhib.
Pom zoo:
Puas yog tag nrho cov quadrilaterals muaj ib txoj kab ntawm symmetry?
Ib txoj kab uas qhia txog ib daim duab rau nws tus kheej yog hu ua kab ntawm symmetry. Ib daim duab uas tuaj yeem nqa mus rau nws tus kheej los ntawm kev sib hloov yog hais tias muaj kev sib hloov symmetry. Txhua plaub-sided polygon yog quadrilateral
Ob kab ntawm symmetry yog dab tsi?
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Puas yog tsab ntawv N puas muaj ib txoj kab ntawm symmetry?
Cov tsiaj ntawv zoo li B thiab D muaj kab rov tav ntawm symmetry: lawv sab saum toj thiab hauv qab qhov sib tw. Qee cov tsiaj ntawv, piv txwv li, X, H, thiab O, muaj ob txoj kab ntsug thiab kab rov tav ntawm symmetry. Thiab qee qhov, zoo li P, R, thiab N, tsis muaj kab sib luag
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Qhov twg dotted kab yog ib txoj kab ntawm symmetry?
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