Find the parametric equation of the line through a parallel to ba=\begin

kolonelyf4

kolonelyf4

Answered question

2021-11-21

Find the parametric equation of the line through a parallel to b
a=[34], b=[78]

Answer & Explanation

Fommeirj

Fommeirj

Beginner2021-11-22Added 11 answers

Step 1
The given vectors are
a=[34], b=[78]
From the Eq. (3) the parametric vector equation of a line through a parallel to b is
x=a+tb=[34]+t[78]
Hence, the equation is
x=[34]+t[78]

Luis Sullivan

Luis Sullivan

Beginner2021-11-23Added 11 answers

Step 1
a=[34], b=[78]
x=[34]+[78]t
x1=37t
x2=4+8t
Eliza Beth13

Eliza Beth13

Skilled2023-05-10Added 130 answers

To find the parametric equation of the line through a point parallel to a vector, let's consider the given vectors:
a=[34] and b=[78]
We can observe that vector b is parallel to the desired line. To represent a line, we need a point on the line and its direction vector. We can choose point a as a point on the line and vector b as the direction vector.
Let's denote the parametric equation of the line as:
𝐫=𝐚+t𝐛
where 𝐫 represents a position vector on the line, 𝐚 is the initial point on the line, t is a scalar parameter, and 𝐛 is the direction vector of the line.
Substituting the values of 𝐚 and 𝐛 into the equation, we get:
𝐫=[34]+t[78]
Expanding the equation, we have:
𝐫=[37t4+8t]
Therefore, the parametric equation of the line through point 𝐚 parallel to vector 𝐛 is:
𝐫=[37t4+8t]
nick1337

nick1337

Expert2023-05-10Added 777 answers

Answer:
𝐫=[37t4+8t]
Explanation:
Let's consider the given vectors:
a=[34] and b=[78]
We want to determine the equation of a line that passes through point a and is parallel to vector b.
A general parametric equation for a line can be written as:
𝐫=𝐚+t𝐯
where 𝐫 represents a position vector on the line, 𝐚 is a known point on the line, t is a scalar parameter, and 𝐯 is the direction vector of the line.
In this case, we can set 𝐚 as the given point a and 𝐯 as the given vector b. Substituting these values, we obtain:
𝐫=[34]+t[78]
Simplifying, we get:
𝐫=[37t4+8t]
Hence, the parametric equation of the line passing through point a=[34] and parallel to vector b=[78] is:
𝐫=[37t4+8t]
madeleinejames20

madeleinejames20

Skilled2023-05-10Added 165 answers

Given vectors a and b, we can observe that the direction vector of the line is the same as b. Therefore, 𝐫(t), the derivative of 𝐫(t) with respect to t, will be equal to b.
The vector equation of the line L can be written as:
𝐫(t)=𝐚+t𝐛
where 𝐚 is the initial point on the line and t is a parameter that determines different points on the line.
Substituting the given values of a and b, we have:
𝐫(t)=[34]+t[78]
Simplifying this equation, we get:
𝐫(t)=[37t4+8t]
Therefore, the parametric equation of the line L through a parallel to b is:
𝐫(t)=[37t4+8t]

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