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27 January, 18:58

Write the equation 5x + 4y = 10 so that y is a function of x.

Show your work.

A. y = 5/4x + 2.5

B. y = 1.2x - 5/2

C. y = - 5/4 - 5/2

D. y = - 5/4x + 5/2

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Answers (2)
  1. 27 January, 19:10
    0
    5x + 4y = 10

    - 5x - 5x

    4y = - 5x + 10

    4 4

    y = - 1¹/₄x + 2¹/₂

    The answer is D.
  2. 27 January, 19:17
    0
    The general equation of the slope intercept form is y = mx + b. The first step is to subtract the whole equation by 5x. This leaves 4y on the left side. Then, divide the whole equation by 4, which results to option D. y = - 5/4x + 5/2
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