avazmcnsiwofo avazmcnsiwofo
  • 22-02-2021
  • Mathematics
contestada

Find the range of the function f(x) = 3x - 8
if the domain is {-4, 2, 7).

Respuesta :

zeeman25
zeeman25 zeeman25
  • 22-02-2021

Answer:

f(-4)=3(-4)-8

f(-4)=-12-8

f(-4)=-20

f(2)=3(2)-8

f(2)=6-8

f(2)=-2

f(7)=3(7)-8

f(7)=21-8

f(7)=13

R=(-20, -2, 13)

Answer Link
andromache andromache
  • 26-04-2022

The range of the function when  f(x) = 3x - 8 and the domain is {-4, 2, 7) is (-20, -2, 13).

Calculation of the range:

Since

f(-4)=3(-4)-8

f(-4)=-12-8

f(-4)=-20

Now

f(2)=3(2)-8

f(2)=6-8

f(2)=-2

Now

f(7)=3(7)-8

f(7)=21-8

f(7)=13

So,

R=(-20, -2, 13)

hence, The range of the function when  f(x) = 3x - 8 and the domain is {-4, 2, 7) is (-20, -2, 13).

learn more about range here; https://brainly.com/question/13455383

Answer Link

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