3. (a) let a be a nxn matrix whose column space is not equal to r". what can you say about the null space of a, n(a)? (b) if an nxn matrix a has a mull space that is not trivial (not the zero space), does ax b have a solution for any b in r"?

both graphs increase on their domain

neither graph has a y-intercept

step-by-step explanation:

the following points can be visualized easily from the graph

from the sentence, "tomorrow morning, akiko will arrive an hour late" depicts a third person perspective because it doesn't use any pronoun to replace akiko, the subject of the sentence, and it is in singular form since akiko is only one person.