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determine whether the graphs of the pair of lines are parallel5x - y = 254y - 20x = - 4

Answer :

We will have the following:

We will solve for y in each function first:

[tex]y=5x-25[/tex]

&

[tex]4y=20x-5\Rightarrow y=5x-\frac{5}{4}[/tex]

From this we can see that their slopes are equal, thus the lines will be parallel.

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