For which value of a are the graphs of –4 = 3x + 6y and ax – 8y = 12 parallel?

The answer is A) a=-4

Step-by-step explanation:

The value of a is -4.

Step-by-step explanation:

Since, two lines and are called parallel lines,

If

If 3x + 6y = 4 and ax-8y = 12 are parallel lines,

Then, by the above property,

By cross multiplication,

( Dividing both terms by 6}

Hence, the value of a is -4 for which 4 = 3x + 6y and ax – 8y = 12 are parallel.

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step-by-step explanation:

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step-by-step explanation:

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