If 8+ i is a root of a polynoial with integer coefficients, which of the following must be another root?

Find the given elements if matrix d:

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.