Whitch of the following is an equation of the line through (2 3) and (-1 -12)

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Whitch of the following is an equation of the line through (2 3) and (-1 -12)

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Diễm Thu 4 years 2021-09-01T21:19:52+00:00 1 Answers 4 views 0

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  1. minhkhang
    0
    2021-09-01T21:21:24+00:00
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    (y2-y1)/(x2-x1)

    (-12-3)/(-1-2)= -15/-3= 5

    slope is 5

    y=5x+b

    -12=5(-1)+b

    b or the y-int equals -7

    therefore the equation is y=5x-7

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )