Plis help i need this :c

step-by-step explanation:

let pq = qr = rs = x, and xz = y and zu = z.

if the horizontal lines are parallel, then corresponding segments are in proportion:

substitute:

therefore 3 = y = z.

xu = y + z → xu = 3 + 3 = 6

the first domain and range set to the left is matched with the top relation, and the second set the set in the middle goes with the bottom relation.