Algebra

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I need toIs the following pair of lines parallel or perpendicular? Prove your answer.

2y – x = 2

y + 2x = 4




can you explain how to break this down ...

  • Algebra -

    you need to get it into slope intercept form--y=mx+b
    (m being the slope) to figure out whether they are parallel (having equal slopes) or perpendicular (slopes are negative reciprocals)

    2y-x=2
    2y=x+2
    y=1/2x+1
    slope=1/2

    y+2x=4
    y=-2x+4
    slope=-2


    -2 and 1/2 are negative reciprocals making these two line perpendicular

  • Algebra -

    Thank you I did not see the answer. Thank you so much

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