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gjhfdfg Group TitleBest ResponseYou've already chosen the best response.0
f(x) = 7x + 8; x = 5
 one year ago

gjhfdfg Group TitleBest ResponseYou've already chosen the best response.0
Is it 35? I feel like this is to easy & I'm just not seeing it.
 one year ago

darth Group TitleBest ResponseYou've already chosen the best response.0
simple subt.
 one year ago

Hoa Group TitleBest ResponseYou've already chosen the best response.1
@darth take "derivative"
 one year ago

jamesHayek Group TitleBest ResponseYou've already chosen the best response.0
Are you asked to take a limit? if f(x)=7x+8 then f(x)'=7 If you plug in your value of "5" and take the derivative you get 0. I don't fully understand your question.
 one year ago

gjhfdfg Group TitleBest ResponseYou've already chosen the best response.0
43 isnt one of the answer choices
 one year ago

jamesHayek Group TitleBest ResponseYou've already chosen the best response.0
What are your choices?
 one year ago

gjhfdfg Group TitleBest ResponseYou've already chosen the best response.0
I did the same thing first, I plugged then 5 in then solved it & got 43 but then it wasnt one of my choices.
 one year ago

gjhfdfg Group TitleBest ResponseYou've already chosen the best response.0
A. 40 B. 8 C. 35 D. 7
 one year ago

jamesHayek Group TitleBest ResponseYou've already chosen the best response.0
Then asked for the derivative of f(x), I belvie the question is worded wrong.
 one year ago

darth Group TitleBest ResponseYou've already chosen the best response.0
but what does the x=5 has to do with it?
 one year ago

gjhfdfg Group TitleBest ResponseYou've already chosen the best response.0
I don;t know, I didnt type the question.
 one year ago

Hoa Group TitleBest ResponseYou've already chosen the best response.1
nothing! the derivative of f doesn't depend on x. that what it means
 one year ago
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