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    Mathematics
    Grade-8
    Easy

    Question

    Identify the equation of the line with a slope of –3 and a y-intercept of 4

    1. y = 3x + 4
    2. y = 3x – 4
    3. y = –3x + 4
    4. y = –3x – 4

    hintHint:

    Equation of a line in slope intercept form can be written as y = mx + c, where m = slope and c = y-intercept.

    The correct answer is: y = –3x + 4

      GIVEN-
      Slope = m = -3
      y-intercept = c = 4
      TO FIND-
      Equation of the line.
      SOLUTION-
      We know that equation of a line in slope intercept form can be written as y = mx + c, where m = slope and c = y-intercept.
      ∴ substituting the values of m & c in y = mx + c, we get-
      y = -3x + 4
      FINAL ANSWER-
      Option 'c' i.e. '-3x + 4' is the correct answer to the given question.

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