Cov txheej txheem:
Video: Koj yuav daws qhov teeb meem txoj kab nqes li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
- Txheeb xyuas qhov txoj kab nqes , m. Qhov no tuaj yeem ua tiav los ntawm kev suav cov txoj kab nqes nruab nrab ntawm ob lub ntsiab lus paub ntawm kab siv cov txoj kab nqes qauv.
- Nrhiav y-intercept. Qhov no tuaj yeem ua tau los ntawm kev hloov cov txoj kab nqes thiab lub coordinates ntawm ib tug point (x, y) ntawm kab nyob rau hauv lub txoj kab nqes -intercept formula thiab ces daws rau b.
Kuj nug, peb txoj kev nrhiav txoj kab nqes yog dab tsi?
Cov ntsiab lus hauv cov teeb no (8)
- nqes hav. y2 - y1 / x2 - x1 = nqes.
- Slope Intercept form. y = mx + b.
- Point txoj kab nqes. y - y1 = m (x - x1)
- Standard Form. Ax + By = C.
- x-axis. Kab rov tav ntawm ib daim duab.
- y axis. Kab ntsug ntawm ib daim duab.
- X - cuam tshuam. Lub ntsiab lus ntawm ib kab uas cuam tshuam rau ntawm x axis.
- Y - cuam tshuam.
txoj kab nqes hauv qhov teeb meem yog dab tsi? Hauv kab zauv ntawm kab ncaj (thaum qhov sib npaug sau ua "y = mx + b"), txoj kab nqes yog tus naj npawb "m" uas tau muab faib rau ntawm x, thiab "b" yog y-intercept (uas yog, qhov taw tes uas kab hla txoj kab ntsug y-axis).
Kuj paub, koj yooj yim nrhiav txoj kab nqes li cas?
Rau nrhiav txoj kab nqes ntawm ob lub ntsiab lus, koj tuaj yeem siv qhov point- txoj kab nqes formula ntawm (y2 - y1) / (x2 - x1). Nrog cov ntsiab lus ntsaws rau hauv, cov qauv zoo li (3 - 2) / (4 - 1). Simplify cov mis kom tau ib txoj kab nqes ntawm ?.
Koj yuav tsum xaus nrog:
- x1: 2.
- y1: 4.
- x2: 6.
- y2: 6.
Koj sau txoj kab nqes ntawm ib qho kev sib npaug li cas?
Rau sau ib kev sib npaug hauv txoj kab nqes -intercept form, muab ib daim duab ntawm qhov ntawd kev sib npaug , xaiv ob lub ntsiab lus ntawm kab thiab siv lawv los nrhiav qhov txoj kab nqes . Qhov no yog tus nqi ntawm m nyob rau hauv lub kev sib npaug . Tom ntej no, nrhiav cov kev tswj hwm ntawm y-intercept--qhov no yuav tsum yog ntawm daim ntawv (0, b). Tus y-coordinate yog tus nqi ntawm b nyob rau hauv lub kev sib npaug.
Pom zoo:
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