Which of the following is an equation of the line through (3, -1) and (-2, 14)?

Question

Which of the following is an
equation of the line through (3, -1) and (-2, 14)?

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Phúc Điền 5 months 2021-08-09T15:03:57+00:00 1 Answers 29 views 0

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    2021-08-09T15:05:14+00:00

    Answer:

    y = -3x + 8

    Step-by-step explanation:

    The equation of the line in point slope form is expressed as;

    y – y0 = m(x-x0)

    m is the slope

    m = 14+1/-2-3

    m = 15/-5

    m = -3

    Substitute the point (3, -1) and m = -3 into the formula

    y + 1 = -3(x-3)

    y+1 = -3x + 9

    y = -3x+9-1

    y = -3x + 8

    Hence the required equation of the line is y = -3x + 8

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