If a polynomial function f(x) has roots -8, 1, and 6i, what must also be a root of f(x)? a. -6
b. -6i
c. 6-1
d. 6

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

the answer

b. they are parallel and will never intersect.

3 is greater then both of those numbers

total of apples - take away four

6-4 = 2

answer is 2 apples