Find a vector equation and parametric equations for the line segment that joins P to Q. P(0, - 1, 1), Q(1/2, 1/3, 1/4)

sodni3

sodni3

Answered question

2021-05-29

Find the vector and parametric equations for the line segment connecting P to Q.
P(0, - 1, 1), Q(1/2, 1/3, 1/4)

Answer & Explanation

Szeteib

Szeteib

Skilled2021-05-30Added 102 answers

Vector equation of a line segment joining the points with position vectors r0 and r1 is
r=(1t)r0+tr1
Where t[0,1]
Substitute r0=<0,1,1> and r1=<12.13,14>
r(t)=(1t)(0,1,1)+t<12,13,14>
r(t)=<0,1+t,1t>+<t2,t3,t4>
r(t)=<t2,1+4t3,13t4>
Where t[0,1] The parametric equations for the line segment are
x=t2,y=1+4t3,z=13t4
Where t[0,1]
madeleinejames20

madeleinejames20

Skilled2023-05-27Added 165 answers

Answer:
x=t2
y=1+t3
z=1+t4
Explanation:
To find the vector and parametric equations for the line segment connecting points P and Q, we can use the following steps:
1. Find the direction vector:
v=PQ=QP
2. Calculate the parametric equations:
x=xP+tvx
y=yP+tvy
z=zP+tvz
Now, let's calculate the values using the given points P(0, -1, 1) and Q(1/2, 1/3, 1/4):
1. Direction vector:
v=QP=(12,13,14)(0,1,1)
2. Parametric equations:
x=0+t(12)
y=1+t(13)
z=1+t(14)
Eliza Beth13

Eliza Beth13

Skilled2023-05-27Added 130 answers

Step 1. Calculate the vector 𝐯 that represents the direction of the line segment. This can be done by subtracting the coordinates of point P from the coordinates of point Q:
𝐯=𝐐𝐏=(121314)(011)=(1213+1141)=(124334).
Step 2. Express the parametric equations for the line segment using the vector 𝐯 and the coordinates of point P. Let's denote the parameter as t:
𝐫(t)=𝐏+t𝐯=(011)+t(124334).
The parametric equations can also be written component-wise as:
x(t)=0+12t,y(t)=1+43t,z(t)=134t.
These equations describe the line segment connecting points P and Q.
Mr Solver

Mr Solver

Skilled2023-05-27Added 147 answers

To find the vector and parametric equations for the line segment connecting points P and Q, we can use the following steps:
1. Find the vector PQ, which represents the displacement from point P to point Q:
PQ=[QxPxQyPyQzPz]
Substituting the coordinates of P and Q:
PQ=[12013(1)141]
Simplifying:
PQ=[124334]
2. The parametric equations for the line segment can be written as follows:
x=Px+t·PQx
y=Py+t·PQy
z=Pz+t·PQz
Substituting the coordinates of point P and the components of PQ:
x=0+t·12
y=1+t·43
z=1+t·(34)
Simplifying, we get the parametric equations for the line segment:
x=t2
y=1+4t3
z=13t4
These equations describe the line segment connecting points P(0, -1, 1) and Q(12, 13, 14).

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