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Consider the functions f(x) = 2(x − 9) and g(x) = 4x. What is the value of (f − g)(5)?
12
28
20
−28
 one year ago
 one year ago
Consider the functions f(x) = 2(x − 9) and g(x) = 4x. What is the value of (f − g)(5)? 12 28 20 −28
 one year ago
 one year ago

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ZeHanzBest ResponseYou've already chosen the best response.2
Just remember: (fg)(5)=f(5)g(5)
 one year ago

AndrewisbadatmathBest ResponseYou've already chosen the best response.0
So what do i plug in?
 one year ago

ZeHanzBest ResponseYou've already chosen the best response.2
Plug in 5 in both of the functions and subtract the outcomes.
 one year ago

AndrewisbadatmathBest ResponseYou've already chosen the best response.0
so, f(5) = 2(59) and g(5)=4 times 5?
 one year ago

AndrewisbadatmathBest ResponseYou've already chosen the best response.0
now i am confused
 one year ago

dpaIncBest ResponseYou've already chosen the best response.0
simplify f(5) = ??? g(5) = ???
 one year ago

dpaIncBest ResponseYou've already chosen the best response.0
you got it right earlier... just need to simplify....
 one year ago

ZeHanzBest ResponseYou've already chosen the best response.2
@Andrewisbadatmath: right, and if you've found f(5) and g(5), you calculate their difference: f(5)  g(5)
 one year ago

AndrewisbadatmathBest ResponseYou've already chosen the best response.0
ok thank you
 one year ago

AndrewisbadatmathBest ResponseYou've already chosen the best response.0
so it is 12?
 one year ago

AndrewisbadatmathBest ResponseYou've already chosen the best response.0
no i meant 12
 one year ago

ZeHanzBest ResponseYou've already chosen the best response.2
f(5) = 2(59) = 2*(4)=... g(5) = 4*5 = ... f(5)  g(5) = ... (not 12)
 one year ago

ZeHanzBest ResponseYou've already chosen the best response.2
You will get 8  20 = ...
 one year ago
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