8.2.3 Vectors Flashcards
1
Q
vector
A
a quantity that has both length and direction
2
Q
component form 〈x, y〉
A
of a vector lists the horizontal and vertical change from the initial point to the terminal point
3
Q
magnitude
A
of a vector is its length
4
Q
direction
A
of a vector is the angle that it makes with a horizontal line. The angle is measured counterclockwise from the positive x-axis.
5
Q
Two vectors are equal vectors
A
if they have the same magnitude and the same direction
6
Q
Two vectors are parallel vectors
A
if they have the same direction or if they have opposite directions
7
Q
resultant vector
A
the vector that represents the sum of two given vectors
