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Math Help - how to find if slope passes through specific point on graph

  1. #1
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    how to find if slope passes through specific point on graph

    so i have a slop of -1/2...and i need to know if this line passes through (0,0) i know it seems really easy but just wondering...
    do i need to know what b (in the formula y=mx+b) is equal to?
    could someone please show me how to do this?


    THANKS!
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  2. #2
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    You might want to check with someone else, but I think all you do is plug 0 to x. If your y equal to 0, then yes, the line passes on point 0,0. Again, I'm not 100 positive if that is correct..
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    thanks!
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  4. #4
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by aloha_2u View Post
    so i have a slop of -1/2...and i need to know if this line passes through (0,0) i know it seems really easy but just wondering...
    do i need to know what b (in the formula y=mx+b) is equal to?
    could someone please show me how to do this?


    THANKS!
    your question as asked makes no sense. slopes don't pass through anything. perhaps you wanted to know if a straight line with slope -1/2 passes through (0,0). in that case, it is easy. if the line has no y-intercept (that is, it's y-intercept is zero, there is no b in the equation of the line y = mx + b) then yes, it passes through the origin. so if you are talking about the line y = (-1/2)x, then the answer is yes. please be specific next time
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