jpsaad00
06.03.2020 •
Mathematics
. Find sets of parametric equations and symmetric equations of the line through the point parallel to the given vector or line (if possible).
Point (-4,0,2)
Parallel to v=2i + 8j - 7k
(a) parametric equations (Enter your answers as a comma-separated list.)
(b) symmetric equations
A. 2x= y/8 = 7z
B. (x+4)/2 = y/8 = (2-z)/7
C x/2 = y = z/7
D. (x-4)/2 = y = z/7
Solved
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Ответ:
a) Parametric equations
x = -4 + 2t
y = 8t
z = 2-7t
b) symmetric equations
The answer is the option B
Step-by-step explanation:
For writing the vectorial equation of a line, we need a point in the line and its director vector, thus:
Where is a point in the line
(a,b,c) is the director vector
Then
a) Parametric equations
Since the vectorial equation, we can obtain the parametric equations writing the equation for each component
x = -4 + 2t
y = 8t
z = 2-7t
b)Symmetric equations
Since the parametric equations, we isolate the parameter t
Ответ:
my man
Step-by-step explanation: