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gjhfdfg
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Let f(x) = 2x  7 and g(x) = 4x + 3. Find (f ° g)(5).
 2 years ago
 2 years ago
gjhfdfg Group Title
Let f(x) = 2x  7 and g(x) = 4x + 3. Find (f ° g)(5).
 2 years ago
 2 years ago

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dpaInc Group TitleBest ResponseYou've already chosen the best response.1
can you find g(5) = ????
 2 years ago

dpaInc Group TitleBest ResponseYou've already chosen the best response.1
after you find g(5), put that answer into f...
 2 years ago

gjhfdfg Group TitleBest ResponseYou've already chosen the best response.1
I'm a little lost, so pretty much just do this, 2*(5) 7 and 4*(5) + 3? Is that what your saying?
 2 years ago

dpaInc Group TitleBest ResponseYou've already chosen the best response.1
yes... but i only wanted g(5)... so g(5) = 4*(5) + 3 = ???? what's the answer here?
 2 years ago

dpaInc Group TitleBest ResponseYou've already chosen the best response.1
good... now that you found g(5)=23, that 23 goes into f. so you need to find f(23) = ???
 2 years ago

gjhfdfg Group TitleBest ResponseYou've already chosen the best response.1
It would be 53 wouldnt it?
 2 years ago

dpaInc Group TitleBest ResponseYou've already chosen the best response.1
that is the definition of (f ° g)(5) = f(g(5))
 2 years ago

dpaInc Group TitleBest ResponseYou've already chosen the best response.1
yes.... :) f(23) = 2*(23)  7 = 46 7 = 53
 2 years ago

dpaInc Group TitleBest ResponseYou've already chosen the best response.1
good work... :)
 2 years ago

gjhfdfg Group TitleBest ResponseYou've already chosen the best response.1
Thanks for your help.! =)
 2 years ago
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