Ko te kaha piki, te kaha heke rānei o tētahi rārangi i te kauwhata. Mēnā e piki ana te rārangi, he tau tōrunga hei whakaatu i te rōnaki. Mēnā e heke ana te rārangi, he tau tōraro te rōnaki.
This slope of a line on a graph. If the line is ascending, a positive number is used to show its gradient. If the line is descending, it takes a negative number.
rōnaki - sloping, slanting
Ko te tau whakarea i te x hei tohu i te rōnaki o te rārangi.
Ko tēhea te rōnaki poupou ake – ko te whā, ko te kotahi rānei?