Question

How does multiplying a vector by a scalar value of - pi change the vector?

Answer 1

A vector in its standard form is given by:
 v = lvl * (cos (theta) i + sin (theta) j)
 If we multiply the vector by a scalar -pi we have:
 v = -pi * lvl * (cos (theta) i + sin (theta) j)
 We observe the following changes:
 The magnitude of the vector is greater.
 The vector changes direction.
 Answer:
 A. The vector will change direction and increase in magnitude.