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ghhosst
Group Title
Check my answers please:
Given f(x) = x²+2 ; g(x) = 3x
a)g*f(x):
>My answer: g(x²+2) = 3(x²+2)
b)f*g(x):
>My answer: (3x)²+2 = 3x²+2
c)g^1*g(x)
>My answer: 3x/3
**I'm unsure of B, C.
 3 years ago
 3 years ago
ghhosst Group Title
Check my answers please: Given f(x) = x²+2 ; g(x) = 3x a)g*f(x): >My answer: g(x²+2) = 3(x²+2) b)f*g(x): >My answer: (3x)²+2 = 3x²+2 c)g^1*g(x) >My answer: 3x/3 **I'm unsure of B, C.
 3 years ago
 3 years ago

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MathMind Group TitleBest ResponseYou've already chosen the best response.0
B) f*g(x) = 9x + 2 C) y=3x x=3y so, y=x/3 therefore, 3(x/3) = x g^1*g(x) = x
 3 years ago

ghhosst Group TitleBest ResponseYou've already chosen the best response.0
@MathMind In c you made y = 3x, the reason that i was x/3 is because isn't that the inverse of 3x=y?
 3 years ago

Fruitless Group TitleBest ResponseYou've already chosen the best response.2
a) is correct b) is incorrect c) checking...
 3 years ago

Fruitless Group TitleBest ResponseYou've already chosen the best response.2
c is correct
 3 years ago

Fruitless Group TitleBest ResponseYou've already chosen the best response.2
b should be (3x)^2+2=9x^2+2
 3 years ago

MathMind Group TitleBest ResponseYou've already chosen the best response.0
well yea, i didn't see you didn't simplified it, sorry. but it's right
 3 years ago

MathMind Group TitleBest ResponseYou've already chosen the best response.0
and Fruitless is right about b, i miss the (^2) on the x B) \[9x^2+2\]
 3 years ago

ghhosst Group TitleBest ResponseYou've already chosen the best response.0
cool. Thanks Guys/Girls. :) *Oh and if possible can one of you answer my Inverse question below?*
 3 years ago
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