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4 December, 19:52

What is the y - intercept of the graph of 2x + y = - 4?

A) (0,-4)

B) (0,2)

C) (0,4)

D) (0,-2)

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Answers (1)
  1. 4 December, 21:31
    0
    First write the equation in slope-intercept form which is more commonly known as y = mx + b form where the m or the coefficient of the x term represents the slope of the b or the constant term represents the y-intercept.

    Subtract 2x from both sides to get y = - 2x - 4.

    I put the x term first because that's how it is in y = mx + b form.

    Now we can see that the b or the constant term is - 4.

    We can write this as the ordered pair (0, - 4).

    Keep in mind when writing a y-intercept as an ordered pair, your x-coordinate will always be 0 in the ordered pair.
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