I'm really confused about question d and need does anyone know what it is?

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?

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?