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

User Fredashay
by
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2 Answers

2 votes

Answer:

a=-4

Explanation:

i got it right

User Rich Seller
by
9.5k points
2 votes
a = -4

If you plug in -4, it becomes -4x - 8y = 12 and if you turn this into slope-intercept form, it is y = -1/2x + 12.

The first equation, -4 = 3x + 6y, put into slope-intercept form is y = -1/2x - 2/3

They have the same slope, making them parallel.
User IMoeNya
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8.7k points

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