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X f(x)
-2 -1/200
-1 -1/20
0 -1/2
1 -5
2 -50


Sagot :

9514 1404 393

Answer:

  f(x) = -1/2·10^x

Step-by-step explanation:

The y-intercept is -1/2.

The common ratio is (-1/20)/(-1/200) = 10, so the exponential function can be written as ...

  f(x) = -1/2·10^x