To calculate for the magnitude of vector PQ, what needs to be done is to determine the distance between them through the two-point equation which is shown below.
d = sqrt ((x₂ - x₁)² + (y₂ - y₁)²)
Substituting the known values, d = sqrt ((13 - 5)² + (12 - 9)²) The value of d from the equation is sqrt of 73 or 8.54.
Therefore, the magnitude of the vector is equal to 8.54.
