What is the equation of a line that is parallel to -x+3y=6 and passes through the point (3,5)?

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For a test!!

Respuesta :

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

Where:

m: It's the slope

b: It is the cut-off point with the y axis

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

We have the following line:

[tex]-x + 3y = 6\\3y = x + 6\\y = \frac {1} {3} x + \frac {6} {3}\\y = \frac {1} {3} x + 2[/tex]

Thus, the slope is:[tex]m_ {1} = \frac {1} {3}[/tex]

Then [tex]m_ {2} = \frac {1} {3}[/tex]

So, the line is of the form:

[tex]y = \frac {1} {3} x + b[/tex]

We substitute the point[tex](x, y) :( 3,5)[/tex]and find b:

[tex]5 = \frac {1} {3} (3) + b\\5 = b[/tex]

Thus, the equation is:

[tex]y = \frac {1} {3} x + 5[/tex]

Answer:

[tex]y = \frac {1} {3} x + 5[/tex]