What is the equation of the line that has a slope of 3 and passes through the point (1, -2)

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What is the equation of the line that has a slope of 3 and passes through the point (1, -2)

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Minh Khuê 3 months 2021-07-26T02:05:49+00:00 1 Answers 3 views 0

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    2021-07-26T02:07:29+00:00

    Answer:

    y= 3x -5

    Step-by-step explanation:

    The equation of a line can be written in the slope- intercept form, y= mx +c (where m is the slope and c is the y- intercept).

    Given that the slope is 3, m= 3. Substitute m= 3 into the equation.

    y= 3x +c

    To find the value of c, substitute a pair of coordinates into the equation.

    When x= 1, y= -2,

    -2= 3(1) +c

    -2= 3 +c

    c= -2 -3

    c= -5

    Thus the equation if the line is y= 3x -5.

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