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25 March, 02:56

A linear equation is modified so that the rate of change is tripled, but the y-intercept remains the same. Which pair of equations could represent the original equation and the modified equation?

A. y=x+3 and 3y=3x+9

B. y=9x-2 and y=12x-2

C. y=-2x-3 and y=-2x-9

D. y=-5x+6 and y=-15x+6

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Answers (1)
  1. 25 March, 04:21
    0
    That would be D. y = - 5x + 6 and y = - 15x + 6 are identical except that the slope of the 2nd is 3 times the slope of the first.
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