Precalculus 2014

 PAGE: 497 SET: Exercises PROBLEM: 1

The intial and terminal points are and .

Component form of a vector :

The component form of a vector with intial point and terminal point is .

The points are  and .

Substitute and in component form.

.

The component of a vector  is .

Magnitude of the vector :

If  is a vector  with intial point and terminal point , then magnitude of the is

.

The points are .

Substitute and in magnitude of the vector form.

.

Magnitude of the vector is is approximately .

The component of a vector  is .

Magnitude of the vector is .

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