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16 March, 11:44

What is the y - intercept of - 3x - 9y = 18?

a. 2

b. - 2

c. 6

d. - 6

+5
Answers (2)
  1. 16 March, 11:56
    0
    Sub. x=0:

    -9y=18

    y=-2

    so the answer is b.
  2. 16 March, 12:12
    0
    Rearrange the equation to the form:

    y = mx + b

    where b is the y-intercept.

    -3x - 9y = 18

    -9y = 3x + 18

    y = - (x/3) - 2.

    The answer is b. - 2.
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