Problem :
What is the difference between a vector and a ray?
A vector has finite length, whereas a ray extends in one direction without
limit.
Problem :
A vector has origin at (1,2) and endpoint at (-3,-4). What is the horizontal,
or x-component of this vector?
-4
Problem :
How many vectors are needed to form the coordinate plane?
An infinite number. Vectors have finite length--therefore it requires an
infinite number of vectors to form the coordinate plane, which extends in all
directions without limit.
Problem :
A vector has origin at (-3,5) and endpoint at (0,8). What is the magnitude of
this vector?
= 3
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