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gregori [183]
3 years ago
14

Make x the subject of y 2.x + 1 r-1

Mathematics
1 answer:
Margaret [11]3 years ago
4 0

Answer:

x = \frac{1+y^{2} }{y^{2}-2 }

Step-by-step explanation:

Square both sides.

y² = (2x + 1) / (x - 1)

Multiply both sides by (x - 1).

y²(x - 1) = 2x + 1

xy² - y² = 2x + 1

xy² = 2x + 1 + y²

xy² - 2x = 1 + y²

x(y² - 2) = 1 + y²

x = \frac{1+y^{2} }{y^{2}-2 }

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Easy peasy
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aka
slope between points (x1,y1) and (x2,y2) is
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points

(-7,-9) and (-5,-8)
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remember minusing a negative means addin a positive
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slope=1/2

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since it is less than 1
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