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5 July, 03:18

Find an equation of the line that

a. has the same y-intercept as the line y+7x+3=0 and

b. Is parallel to the line - 11x-12y=-7

Write your answer in the form y=mx+b

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Answers (1)
  1. 5 July, 05:18
    0
    y = (-11/12) x - 3

    Step-by-step explanation:

    Recall that for a linear equation in the form y = mx + b,

    m = slope and b = y-intercept.

    hence to satisfy parts (a) and (b) of the questions, we need to extract the y-intercept from the equation in part (a) and the slope from part (b)

    For part (a)

    given: y+7x+3=0 (rearrange this to get slope-intercept form)

    y+7x+3=0 (subtract 3 from both sides)

    y + 7x = - 3 (subtract 7x from both sides)

    y = - 7x - 3

    we can see that the y-intercept is - 3.

    For part (b)

    given: - 11x - 12y=-7 (rearrange this to get slope-intercept form)

    -11x - 12y=-7 (add 11x toboth sides)

    -12y = 11x - 7 (divide both sides by - 12)

    y = (-11/12) - (7/12)

    we can see that the slope is (-11/12).

    combining the y-intercept from part (a) and the slope from part (b) into the general equation given in the first line above,

    y = (-11/12) x - 3 (answer)
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