Video: Yuav ua li cas koj sau txoj kab nqes nqes intercept daim ntawv nyob rau hauv tus qauv daim ntawv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Txheem daim ntawv yog lwm txoj hauv kev sau nqes hav - cuam tshuam daim ntawv (as opposed to y=mx+b). Nws sau li Ax+By=C. Koj tuaj yeem hloov tau txoj kab nqes - cuam tshuam daim ntawv rau txheem daim ntawv zoo li no: Y=-3/2x+3. Tom ntej no, koj cais cov y- cuam tshuam (hauv qhov no nws yog 2) zoo li no: Ntxiv 3/2x rau txhua sab ntawm kab zauv kom tau qhov no: 3/2x + y = 3.
Ntawm no, koj yuav hloov cov nqes hav cuam tshuam li cas rau daim ntawv qauv?
Rau hloov los ntawm txoj kab nqes intercept form y = mx + b txheem daim ntawv Ax + By + C = 0, cia m = A / B, sau tag nrho cov nqe lus ntawm sab laug ntawm tus kev sib npaug thiab muab faib los ntawm tus denominator B kom tshem tawm cov feem.
Ib yam li ntawd, tus qauv nqes hav yog dab tsi? Cov txheem daim ntawv Ntawm qhov sib npaug yog Ax + By = C. Nyob rau hauv qhov kev sib npaug no, x thiab y yog qhov sib txawv thiab A, B, thiab C yog cov lej. Peb tuaj yeem hloov tau ib lub ntsiab lus txoj kab nqes equation rau txheem daim ntawv los ntawm kev txav cov hloov pauv mus rau sab laug ntawm kab zauv.
Ib yam li ib tug yuav nug, qhov nqes hav yog dab tsi?
Cov txoj kab nqes ntawm ib kab yog tus nqi hloov pauv ntawm y nrog rau x. Cov txoj kab nqes - cuam tshuam daim ntawv ntawm ib kab zauv sib npaug yog y = mx + b, qhov twg m yog qhov txoj kab nqes ntawm kab. Cov txheem daim ntawv ntawm ib kab zauv sib npaug yog Ax + By = C. Thaum peb xav nrhiav tus txoj kab nqes ntawm kab sawv cev los ntawm qhov sib npaug, peb muaj ob txoj kev xaiv.
C sawv cev rau dab tsi hauv daim qauv?
Standard Form : cov txheem daim ntawv ntawm ib kab yog nyob rau hauv daim ntawv Ax + By = C qhov twg A yog tus lej zoo, thiab B, thiab C yog integers.
Pom zoo:
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