If f(x) = 3x2 – 4 and g(x) = 2x – 6, what is g(f(2))
There's 2 ways this can be solved. plugging the 2 into g(x) and then putting what you get from that into f(x) OR Plug g(x) into f(x) then plug in 2.
g(x)= 2(2)-6 = 4-6= -2 f(x) = 3(-2)-4= -6-4= -10
Your answer would be -10
Distribute 2(2) is 4 you would put that after the = sign and -6 would go after that you take 4-6 and get -2. You plug that into f(x) Distribute 3(-2) and its -6 subtract that by -4 and you get your answer -10
The -4 and -6 kind of tags along until you're done distributing. Make sense? I explained the easy way to do this. I hope this helps.
@finny
change it to positive
@jhonyy9
the negative 10 i mean
first i think may be more ussefully than you calcule f(2) = ?
please collaborate step by step
misty f(2)=?
f(2) = 3*4-4 = ?
=8
f(2) = 8 so now just you need calcule g(8) = ? yes sure this is easy
g(8) = 2*8-6 = ?
=10
exactly so g(f(2)) = 10
I see. I got -10 instead but, I see what I've done wrong. Thanks for helping me fix my error
np and anytime just tag me my pleasure do you have questions ?
I don't have any further questions
ok good luck bye bye
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