anonymous
  • anonymous
Consider the functions f(x) = 2(x − 9) and g(x) = 4x. What is the value of (f − g)(5)? 12 28 20 −28
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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ZeHanz
  • ZeHanz
Just remember: (f-g)(5)=f(5)-g(5)
anonymous
  • anonymous
So what do i plug in?
ZeHanz
  • ZeHanz
Plug in 5 in both of the functions and subtract the outcomes.

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anonymous
  • anonymous
so, f(5) = 2(5-9) and g(5)=4 times 5?
anonymous
  • anonymous
now i am confused
anonymous
  • anonymous
simplify f(5) = ??? g(5) = ???
anonymous
  • anonymous
you got it right earlier... just need to simplify....
anonymous
  • anonymous
ohhh...
ZeHanz
  • ZeHanz
@Andrewisbadatmath: right, and if you've found f(5) and g(5), you calculate their difference: f(5) - g(5)
anonymous
  • anonymous
ok thank you
ZeHanz
  • ZeHanz
YW!
anonymous
  • anonymous
so it is -12?
anonymous
  • anonymous
no i meant 12
ZeHanz
  • ZeHanz
f(5) = 2(5-9) = 2*(-4)=... g(5) = 4*5 = ... f(5) - g(5) = ... (not 12)
ZeHanz
  • ZeHanz
You will get -8 - 20 = ...

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