Bilangan selanjutnya dari 3, 6, 2, 4, 4/3, ...​

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

You got a job selling magazines door-to-door. you are paid $100 per day plus $1.50 for each magazine you sell. which recursive formula models this situation?