PreCalc - Vector Vocab Review

Vector is a quantity with:

• magnitude and direction

• magnitude

• direction

• none of the above

When a vector is in standard position, the initial point of the vector is located at the __________________. (use all lower case when typing your response)

Write in component form.

• <-8, -2>

• <8, 2>

• <2, 8>

• <-2, -8>

The initial point of a vector is located at ______

• The head

• The tail

• The middle

• Where the vector is pointing

The terminal point of a vector is located at ______

• The head

• The tail

• The middle

• Where the vector is pointing

When a vector is in STANDARD POSITION __________

• The initial point is at the origin

• The terminal point is at the origin

• The vector is pointing to the origin

• The vector is pointing straight up

What is the directed angle between the vector and the horizontal line that could be used to represent the positive x-axis.

• component

• magnitude

• direction

• orthogonal

What is the length of the line segment.

• component

• magnitude

• direction

• orthogonal

What is a unit vector?

• A vector that has a magnitude of 1 unit.

• A vector that is headed north.

• A vector that is headed south

• A vector in standard position with a magnitude of 1

Components of vectors are __________

• Have the same magnitude but opposite direction.

• Two or more vectors with a sum that is a vector r.

• A directional measurement where the angle is measured clockwise from the north.

• When you add two opposite vectors, the resultant is the zero vector or null vector.