
(a)
The graph of
(a)

Explanation of Solution
The initial and terminal point of the vector u are
Figure (1)
Thus, the Figure (1) shows the graph of vector u in coordinate plane with initial point
(b)
The vector u in terms of i and j.
(b)

Answer to Problem 1T
The vector u in terms of i and j is
Explanation of Solution
Given:
The initial and terminal point of the vector u are
Formula used: The vector v with initial point
The vector
Calculation:
Substitute 3 for
Substitute
Thus, the vector u in terms of i and j is
(c)
The length of vector u.
(c)

Answer to Problem 1T
The length of vector u is
Explanation of Solution
Given:
From part (b), the vector u in terms of i and j is given below,
Formula used: The length of the vector
Calculation:
The vector u is
Substitute
Thus, the length of vector u is
Chapter 9 Solutions
Precalculus: Mathematics for Calculus - 6th Edition
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