How do i do these 2 questions? you in advance : )

Find the length of cu, the triangles are similar.

Which system of linear inequalities is represented by the graph?

Question: a) does the given set of points represent a linear function? how do you know? b) assume that the point (-2,4) lies on the graph of a line. what y-values could complete this set of ordered pairs that lie on the same line: (- (hint: there are several correct answ