drrpyduck drrpyduck
  • 17-01-2022
  • Mathematics
contestada

If f(x)=5x + 9 what is the range when the domain is {-4, 2/5, 3}?

Respuesta :

lor067ewp lor067ewp
  • 24-01-2022

Answer:

The range: { -11, 11, 24}

Step-by-step explanation:

f(x) = 5x + 9   Substitute each number in the domain, which is the x-value, in the equation and solve.

f(-4) = 5(-4) + 9 ;  f(-4) = -20 + 9;  f(-4) = -11

f(2/5) = 5(2/5) + 9; f(-2/5) = 10/5 + 9;  f(2/5) = 2 + 9; f(2/5) = 11

f(3) = 5(3) + 9;  f(3) = 15 + 9; f(3) = 24

The range: { -11, 11, 24}

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