WhakamĀrama Āpitihanga
E rua ngā haukotinga e whakaaturia ana i te kauwhata rārangi nei:
I roto i te whārite nei y = 2x + 1, ko te ‘2’ e tohu ana i te rōnaki o te rārangi, ko te ‘1’ e tohu ana i te haukotinga o te tuaka-y. Ka kīia he whārite rārangi te y = 2x + 1 nā te mea he rārangi torotika tōna kauwhata:
Anei anō ētahi tauira:
y =1/2 x + 2 (rōnaki = 1/2 , haukotinga-y = 2)
y = −2x – 1 (rōnaki = −2, haukotinga-y = −1)