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Math Help - can someone please answer these three questions

  1. #1
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    can someone please answer these three questions

    what is the slope of the line that passes through points (-2, -1) and (5, 6)

    what is the slope of the line that passes through points (2, 4) and (-3, 4)

    are the lines 2x + 5y = 1 and y = 5/2x + 4 parallel, perp, neither, or the same
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  2. #2
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    Quote Originally Posted by tyonna View Post
    what is the slope of the line that passes through points (-2, -1) and (5, 6)

    what is the slope of the line that passes through points (2, 4) and (-3, 4)

    for the first two ...

    \textcolor{red}{m = \frac{y_2-y_1}{x_2-x_1}}

    are the lines 2x + 5y = 1 and y = 5/2x + 4 parallel, perp, neither, or the same

    parallel lines have the same slope, perpendicular lines have slopes that are opposite reciprocals ... not parallel or perpendicular would be neither
    ...
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  3. #3
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    To figure out the slope you use the formula m=y2-y1 / x2-x1 (m being the slop)

    So the first points given are (-2,-1) and (5,6)
    x1= -2, y1 = -1, x2 = 5 and y2 = 6 now you fill in the blanks of the equation:

    6-(-1) divided by 5-(-2) when subtracting a negative you change it to plus a positive so you are left with 7 / 7. The slope is 1.

    Now that I have given you the equation maybe you can figure out the second one. Let me know if you need any more help
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