2.1. Line a can be described by the equation 3(y + 2) = 4x .
Which of these is an equation of a line parallel to line a? Select all that apply.
A. 3x + 4y = 9
B. 3x – 4y = 9
C. -3x + 4y = 9
D. -4x + 3y = 9
E. 4x – 3y = 9

Respuesta :

For this case we have that by definition, the equation of the line of the slope-intersection form is given by:

[tex]y = mx + b[/tex]

Where:

m: It is the slope

b: It is the cut point with the y axis

By definition, if two lines are parallel then their slopes are equal.

We have the following equation:

[tex]3 (y + 2) = 4x\\3y + 6 = 4x\\3y = 4x-6\\y = \frac {4} {3} x-2[/tex]

Thus, the slope is [tex]\frac {4} {3}.[/tex]

From option D we have:

[tex]-4x + 3y = 9\\3y = 4x + 9\\y = \frac {4} {3} x + 3[/tex]

Thus, the correct option is option D.

Answer:

Option D

Answer: D and E

Step-by-step explanation: they have slopes of 4/3

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