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Math Help - Parallel lines.

  1. #1
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    Parallel lines.

    How would I find...
    Which of the following is an equation of the line in the xy-plane that passes through the point (2,-1) and that is parallel to the line with equation 2x-3y=5?

    A) y= -2x-3/2
    B) y= -3/2x + 2
    C) y= 2/3x-7/3
    D) y= 2/3x-1
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  2. #2
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    Quote Originally Posted by dnntau View Post
    How would I find...
    Which of the following is an equation of the line in the xy-plane that passes through the point (2,-1) and that is parallel to the line with equation 2x-3y=5?

    A) y= -2x-3/2
    B) y= -3/2x + 2
    C) y= 2/3x-7/3
    D) y= 2/3x-1
    I recommend you do the following:

    Rearrange the equation into the form  y = mx+c . m will be the gradient, hence find which equations from list have the same gradient. Then input your point into the equation and solve for c, and find the c that matches from the list.
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  3. #3
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    Thank you.
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