C sawv cev rau dab tsi hauv daim qauv?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

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.

Hais txog qhov no, koj pom C hauv tus qauv li cas?

Standard Form [edit] Nws yog sau li Ax + By = C . Koj tuaj yeem hloov txoj kab nqes-intercept daim ntawv rau txheem daim ntawv zoo li no: Y=-3/2x+3. Tom ntej no, koj cais qhov y-intercept (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. Koj tsis tuaj yeem muaj ib feem hauv txheem daim ntawv yog li koj daws qhov no.

Kuj Paub, C yog dab tsi hauv cov qauv ntawm parabola? Cov c -value yog qhov twg daim duab sib tshuam y-axis. Hauv daim duab no, lub c -value yog -1 thiab nws vertex yog qhov siab tshaj plaws ntawm daim duab hu ua qhov siab tshaj plaws. Graph ntawm a parabola uas opens zoo li no. Hauv daim duab no, lub c -value yog -1 thiab nws vertex yog qhov qis tshaj plaws ntawm daim duab hu ua qhov tsawg kawg nkaus.

Dhau li ntawm no, dab tsi yog C hauv AX los ntawm C?

ax + los ntawm = c , qhov twg a tsis sib npaug rau xoom thiab b tsis sib npaug rau xoom. Qhov kev cuam tshuam x pom los ntawm kev teeb tsa y = 0 hauv kab zauv saum toj no thiab daws rau x. Li no, lub x cuam tshuam yog ntawm ( c /a, 0). Qhov kev cuam tshuam y yog pom los ntawm kev teeb tsa x = 0 hauv kab zauv saum toj no thiab daws rau x.

Cov ntawv hauv cov qauv txhais li cas?

Txheem daim ntawv . Qhov sib npaug rau txheem daim ntawv yog sau li y=ax2+bx+c. Ib qho kev sib npaug sau rau hauv txheem daim ntawv tseem yog lwm qhov sib npaug uas daim ntawv parabola thaum graphed. Txhua tsab ntawv hauv txheem daim ntawv equation qhia peb ib daim ntawv qhia txog tus parabola, ib yam li cov ntawv los ntawm vertex daim ntawv equation muaj.