Cov txheej txheem:
- Puas txhua plaub plaub muaj qhov tsawg kawg nkaus lossis siab tshaj tus nqi?
- Puas tag nrho plaub lub luag haujlwm muaj tus nqi siab tshaj?
- Puas tag nrho cov kev sib npaug plaub npaug muaj qhov tsawg kawg nkaus?
- Koj pom qhov tsawg kawg nkaus thiab qhov siab tshaj plaws ntawm kev sib npaug plaub npaug li cas?
Video: Puas tag nrho cov quadratics muaj qhov siab tshaj plaws thiab qhov tsawg kawg nkaus?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Lub quadratic muaj nuj nqi f(x)=ax2 + bx + c yuav have xwb tus nqi siab tshajthaum tus thawj coefficient los yog lub cim ntawm "a" yog qhov tsis zoo. Thaum "a" tsis zoo, daim duab ntawm lub quadratic muaj nuj nqi yuav yog parabola uas qhib. Tus nqi siab tshaj plaws yog "y" ua haujlwm ntawm lub vertex ntawm parabola.
Puas txhua plaub plaub muaj qhov tsawg kawg nkaus lossis siab tshaj tus nqi?
Nrhiav lub Domain thiab ntau yam ntawm Quadratic Function. Ib tus lej twg tuaj yeem yog tus nqi nkag ntawm qhov kev ua haujlwm quadratic. Yog li ntawd, tus sau ntawm ib qho kev ua haujlwm quadratic yog txhua tus lej tiag. Vim tias parabolas muaj qhov siab tshaj plaws lossis qhov tsawg kawg nkaus ntawm qhov vertex, qhov ntau yog txwv.
Puas tag nrho plaub lub luag haujlwm muaj tus nqi siab tshaj?
Tus nqi siab tshaj plaws ntawm kev ua haujlwm yog qhov chaw uas muaj nuj nqi nce mus txog qhov siab tshaj plaws, lossis vertex, ntawm daim duab. Yog tias koj qhov kev sib npaug quadratic muaj qhov tsis zoo, nws tseem yuav muaj qhov siab tshaj plaws. … Yog hais tias koj muab cov mis y=ax2 + bx + c, ces koj yuav nrhiav tau tus nqi siab tshaj uas siv cov mis max=c - (b2 / 4a)
Puas tag nrho cov kev sib npaug plaub npaug muaj qhov tsawg kawg nkaus?
Nrhiav lub Domain thiab ntau yam ntawm Quadratic Function. Txhua tus lej tuaj yeem yog tus nqi nkag ntawm qhov kev ua haujlwm quadratic. Yog li ntawd, tus sau ntawm ib qho kev ua haujlwm quadratic yog txhua tus lej tiag. Vim tias parabolas muaj qhov siab tshaj plaws lossis qhov tsawg kawg nkaus, qhov ntau raug txwv.
Koj pom qhov tsawg kawg nkaus thiab qhov siab tshaj plaws ntawm kev sib npaug plaub npaug li cas?
Nrhiav max/min: Muaj ob txoj hauv kev los nrhiav qhov siab tshaj plaws / qhov tsawg kawg nkaus rau f(x)=ax2 + bx + c: Muab lub quadratic rau hauv daim ntawv f (x)=a(x − h) 2 + k, thiab qhov siab tshaj plaws / yam tsawg kawg nkaus yog k thiab nws tshwm sim ntawm x=h. Yog hais tias ib tug > 0, ces lub parabola qhib, thiab nws yog ib tug tsawg kawg nkaus functional nqi ntawm f.
Pom zoo:
Puas muaj qhov siab tshaj plaws thiab qhov av thaum sib xyaw?
A muffin muaj lub ncov saum toj thiab qhov av thaum sib tov. Lub popover yog leavened yuav luag tag nrho los ntawm chav . Dab tsi batter muaj feem ntau ntawm cov kua rau hmoov? Pour batters (Thin)=Cov kua dej ntau, cov hmoov nplej me me.
Qhov twg yog tag nrho lossis tag nrho?
Koj yuav tsum siv tag nrho nrog cov neeg Asmeskas feem ntau, thiab tag nrho nrog cov neeg tuaj saib Askiv feem ntau. … Ib yam li cov nroog no muaj ob npaug L thiab yog Askiv, tag nrho muaj ob npaug L thiab yog Askiv . txhais tau tias tag nrho?
Txoj kab puas tuaj yeem muaj qhov siab kawg nkaus?
Ib txoj kab nqes tsis kawg yog qhov yooj yim kab ntsugThaum koj npaj nws rau ntawm kab kos, qhov kev nqes hav tsis kawg yog ib kab uas khiav mus rau qhov sib npaug mus rau y-axis. Koj tuaj yeem piav qhia qhov no raws li cov kab uas tsis txav raws x-axis tab sis nyob twj ywm ntawm ib qho kev sib koom ua ke x-axis tas li, ua qhov hloov pauv raws li x-axis 0 .
Nyob rau hauv qhov tsawg kawg nkaus cov tswvcuab txiav txim txiav txim ntawm kev ua txhaum?
Nyob rau hauv cov neeg txiav txim siab tsawg kawg nkaus, kev txiav txim ntawm kev ua txhaum: yuav tsum yog kev sib koom siab. Tus txheej txheem ntawm kev txiav txim siab qhov tsim nyog ntawm cov neeg txiav txim yav tom ntej los zaum ntawm qhov kev sim yog paub tias yog dab tsi?
Rau qhov ntsuas qhov deb tsawg kawg nkaus?
Qhov kev faib tawm qhov tsawg kawg nkaus yog siv txhawm rau faib cov duab tsis paub cov ntaub ntawv rau cov chav kawmuas txo qhov kev ncua deb ntawm cov duab duab thiab cov chav kawm hauv ntau qhov chaw. Qhov kev ncua deb txhais tau tias yog qhov ntsuas qhov sib xws kom qhov tsawg kawg nkaus qhov deb yog zoo tib yam rau qhov siab tshaj plaws zoo sib xws .
