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Mathematics, 23.06.2021 14:00 stephaniero6

if y is inversely proportional to 2x + 1 and the difference in the values of y when x= 0.5 and x= 2 is 0.9, find the value of y when x = -0.25

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if y is inversely proportional to 2x + 1 and the difference in the values of y when x= 0.5 and x= 2...
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