Determining Parallel Lines In Exercises 29-32, determine whether the lines are parallel or identical. x − 1 4 = y − 1 2 = z + 2 4 x + 2 1 = y − 1 0.5 = z − 3 1
Determining Parallel Lines In Exercises 29-32, determine whether the lines are parallel or identical. x − 1 4 = y − 1 2 = z + 2 4 x + 2 1 = y − 1 0.5 = z − 3 1
Solution Summary: The author explains how the pair of lines will be parallel or identical if their direction vectors are parallel.
1. A bicyclist is riding their bike along the Chicago Lakefront Trail. The velocity (in
feet per second) of the bicyclist is recorded below. Use (a) Simpson's Rule, and (b)
the Trapezoidal Rule to estimate the total distance the bicyclist traveled during the
8-second period.
t
0 2
4 6 8
V
10 15
12 10 16
2. Find the midpoint rule approximation for
(a) n = 4
+5
x²dx using n subintervals.
1° 2
(b) n = 8
36
32
28
36
32
28
24
24
20
20
16
16
12
8-
4
1
2
3
4
5
6
12
8
4
1
2
3
4
5
6
=
5 37
A 4 8 0.5
06
9
Consider the following system of equations, Ax=b :
x+2y+3z - w = 2
2x4z2w = 3
-x+6y+17z7w = 0
-9x-2y+13z7w = -14
a. Find the solution to the system. Write it as a parametric equation. You can use a
computer to do the row reduction.
b. What is a geometric description of the solution? Explain how you know.
c. Write the solution in vector form?
d. What is the solution to the homogeneous system, Ax=0?
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