Linear equations tuaj yeem sau rau hauv daim ntawv y=mx + b. Thaum b ≠ 0, kev sib raug zoo ntawm x thiab y yog qhov tsis sib xws. x + 10 muab y, txoj kab uas hla ntawm tsob ntoo hauv ntiv tes, tom qab x xyoo.
Qhov kev sib npaug twg sawv cev rau kev sib raug zoo tsis sib xws?
Daim duab ntawm kab zauv sib npaug yog kab. Yog hais tias b=0 nyob rau hauv ib tug linear equation (yog li y=mx), ces qhov sib npaug yog ib tug proportional linear kev sib raug zoo ntawm y thiab x. Yog tias b ≠ 0, ces y=mx + b yog kev sib raug zoo tsis sib xws ntawm y thiab x.
Daim duab twg los yog qhov sib npaug sawv cev rau kev sib raug zoo tsis sib xws?
teb yog A los yog daim kab uas kab tsis dhaulub hauv paus.
Dab tsi yog qhov sib npaug tsis sib npaug?
Ib qhov sib npaug tsis sib npaug yog ib txwm nyob hauv daim ntawv. y mx b . =+, qhov twg m yog qhov hloov pauv tsis tu ncua lossis nqes hav.
Is Y=- 5x non-proportional?
Yog, txhua qhov sib npaug ntawm daim ntawv y=mx +c yog kev sib raug zoo.
