Don fahimtar menene tabbataccen lambobi masu kyau da marasa kyau, bari mu fara zana layin daidaitawa kuma mu sanya ma'ana 0 (sifili) akansa, wanda ake la'akari da asalin.
Bari mu shirya axis a cikin mafi saba a kwance form. Kibiya tana nuna kyakkyawan shugabanci na madaidaiciyar layi (daga hagu zuwa dama).
Bari mu lura nan da nan cewa lambar “sifili” ba ta shafi ko dai tabbatacce ko lambobi mara kyau.
tabbatacce lambobi
Idan muka fara auna sassan zuwa dama na sifili, to, alamun da aka samu za su dace da lambobi masu kyau daidai da nisa daga 0 zuwa waɗannan alamomin. Don haka mun sami axis na lambobi.
Cikakkun lambobi masu inganci sun haɗa da alamar “+” a gaba, wato, +3, +7, +12, +21, da sauransu. Amma “plus” yawanci ana barinsa kuma ana nufin kawai:
- "+3" yayi daidai da "3"
- +7 = 7
- +12 = 12
- +21 = 21
lura: kowace tabbatacce lamba mafi girma fiye da sifili.
Lambobi mara kyau
Idan muka fara auna sassan zuwa hagu na sifili, to, maimakon lambobi masu kyau, za mu sami lambobi marasa kyau, saboda za mu matsa zuwa gaba da madaidaiciyar layi.
Ana rubuta lambobi mara kyau ta ƙara alamar ragi a gaba, waɗanda ba a taɓa barin su ba: -2, -5, -8, -19, da sauransu.
lura: kowace lamba mara kyau kasa da sifili.
Lambobi mara kyau, kamar masu inganci, ana buƙatar don bayyana ƙididdiga daban-daban na lissafi, na zahiri, tattalin arziki da sauran adadi. Misali:
- yanayin zafi (-15 °, + 20 °);
- asarar ko riba (-240 dubu rubles, 370 dubu rubles);
- cikakkar ragewa ko haɓaka wani takamaiman alama (-13%, + 27%), da sauransu.