Question

points q, v, j are collinear. point v is between q and j. find the length indicated.

1. find qj if qv = 13 and vj = 18.
2. find vj if qv = 26 and qj = 54.

Explanation:

Step1: Use segment - addition postulate

Since Q, V, J are collinear and V is between Q and J, QJ = QV+VJ.

Step2: Solve for QJ in first case

QJ = 13 + 19 = 32

Step3: Solve for VJ in second case

VJ=QJ - QV = 54 - 26 = 28

Answer:

1. 32
2. 28