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29 June, 15:05

Are the graphs of the lines in the pair parallel? Explain. y = 6x + 9 27x - 3y = - 81 Yes, since the slopes are the same and the y-intercepts are different. No, since the y-intercepts are different. No, since the slopes are different. Yes, since the slopes are the same and the y-intercepts are the same.

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  1. 29 June, 15:07
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    y = 6x + 9

    slope = 6

    27x - 3y = - 18

    27x + 18 = 3y

    (divide 27 and 8 by 3)

    9x + 6 = y

    y = 9x + 6

    No the lines are not parallel because they have different slope.
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