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2 June, 04:46

What us the y-intercept of the equation 4x + 5y = 20

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Answers (2)
  1. 2 June, 06:40
    0
    Write equation in slope-intercept format, y = mx + b, where b is the y-intercept.

    4x + 5y = 20

    5y = - 4x + 20

    y = - 4/5 x + 20/5

    y = - 4/5 x + 4

    y = mx + b

    y = - 4/5 x + 4

    b = 4

    Answer: y-intercept = (0, 4)
  2. 2 June, 07:58
    0
    We know that when a line intercepts the y axis, x is 0. So substitute x as 0, which makes the equation 5y = 20 and divide both sides by 5, so y = 4 which is the y intercept.
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