Cov txheej txheem:
Video: Koj ua li cas hloov cov haujlwm linear?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yuav Ua Li Cas: Muab qhov sib npaug ntawm a linear muaj nuj nqi , siv kev hloov pauv mus graph linear muaj nuj nqi f(x) = mx + b f (x) = m x + b. Graph f(x)=x f(x) = x. Vertically stretch los yog compress cov duab los ntawm qhov ua tau |m|. Hloov cov duab nce lossis nqis b units.
Ib yam li ntawd, koj piav qhia txog kev hloov pauv ntawm txoj haujlwm linear li cas?
Graph ntawm a linear muaj nuj nqi (ib kab) tuaj yeem txav mus los ntawm txoj kab sib chaws. Qhov no hu ua a kev hloov pauv . Muaj peb yam yooj yim kev hloov pauv : txhais lus (xiav kab ib ncig), kev xav (flipping kab), thiab scaling (stretching kab). Koj tuaj yeem txav mus ( hloov ) kab vertically lossis horizontally.
Tsis tas li ntawd, cov kev hloov pauv twg cuam tshuam rau txoj kab nqes ntawm txoj haujlwm linear? Hloov pauv Linear Functions (Strech thiab Compression) Stretches thiab compressions hloov cov txoj kab nqes ntawm ib txoj haujlwm linear . Yog hais tias kab yuav steeper, lub muaj nuj nqi tau stretched vertically los yog compressed horizontally.
Raws li, koj ua li cas hloov lub luag haujlwm?
Lub luag haujlwm txhais lus / kev hloov pauv txoj cai:
- f (x) + b hloov cov haujlwm b mus rau sab saud.
- f (x) – b hloov txoj haujlwm b mus rau nqes.
- f (x + b) hloov cov haujlwm b mus rau sab laug.
- f (x – b) hloov cov haujlwm b mus rau sab xis.
- -f (x) qhia txog kev ua haujlwm hauv x-axis (uas yog, upside-down).
Koj xav li cas txog kev ua haujlwm?
A muaj nuj nqi tuaj yeem yog xav txog hais txog ib qho axis los ntawm kev sib npaug los ntawm qhov tsis zoo. Rau xav txog txog y-axis, muab txhua x los ntawm -1 kom tau -x. Rau xav txog hais txog x-axis, muab f(x) los ntawm -1 kom tau -f(x).
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