lolzyxox lolzyxox
  • 16-11-2020
  • Mathematics
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What is the value of k in the function f(x)=112-kx if f(-3)=121?

Respuesta :

devishri1977
devishri1977 devishri1977
  • 16-11-2020

Answer:

k = 3

Step-by-step explanation:

f(x) = 112 - kx   ------------------(I)

f(-3) = 121

In equation (I) substitute x = -3

112 - k*(-3) = 121

112 + 3k = 121

        3k = 121 - 112

        3k = 9

          k = 9/3

k = 3

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