Another Vector question Quick one

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In summary, a vector is a mathematical quantity that has both magnitude and direction, while a scalar only has magnitude. Vectors have various applications in fields such as physics, engineering, and computer graphics. They can be represented using components, magnitude and direction, or starting and ending points. Vector operations include addition, subtraction, and multiplication, which are performed by manipulating the components according to certain rules and properties.
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prace
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So I am given this:

If l has parametric equations

x = 5-3t
y = -2+t
z = 1+9t

find parametic equations for the line through P(-6,4,-3) that is parallel to l.

So, my question is this: for the two lines to be parallel, they have to have the same direction vector right? In this case, <-3, 1, 9>. So if I were to find the parallel line to l, it would be:

x = -6-3s
y = 4+s
z = -3+9s

Thanks!
 
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  • #3
Awesome! Thank you!
 

1. What is a vector?

A vector is a mathematical quantity that has both magnitude and direction. It is typically represented by an arrow, with the length of the arrow representing the magnitude and the direction of the arrow representing the direction.

2. How is a vector different from a scalar?

A scalar is a mathematical quantity that only has magnitude, while a vector has both magnitude and direction. Examples of scalars include temperature, mass, and time, while examples of vectors include velocity, force, and displacement.

3. What are some applications of vectors?

Vectors are used in many fields, including physics, engineering, and computer graphics. Some common applications include analyzing forces in mechanics, representing motion in kinematics, and creating 3D graphics in computer programming.

4. What are some ways to represent a vector?

Vectors can be represented in several ways, including using its components (such as x and y coordinates), using its magnitude and direction, or using its starting and ending points.

5. How do you perform vector operations?

Vector operations include addition, subtraction, and multiplication. These operations are performed by manipulating the components of the vectors according to certain rules and properties. For example, to add two vectors, their corresponding components are added together.

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