fjensen134
fjensen134 fjensen134
  • 17-05-2017
  • Mathematics
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Find the constant of variation k for the direct variation

Find the constant of variation k for the direct variation class=

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mreijepatmat
mreijepatmat mreijepatmat
  • 17-05-2017
f(x) = a.x . We ha to calculate a.

Back to the table, let's rewrite the coordinates

A(0,0)
B(2,-1)
C(4,-2)
D(7,-3.5)
We know that constant is called slope or coefficient is equal to:
a=y/x
Apart from A, in each of the coordinates y/x =-1/2 & this is the slope of the equation f(x) = (-1/2)x
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