Good evening guys, i have two stupid questions that i'm stuck on and i would be grateful if anyone could help(adsbygoogle = window.adsbygoogle || []).push({});

Question 1:

f(x)= x+1 g(x)=x^2

the domain in each case is the interval [-1,1] and belongs to the set of real numbers then find the range of:

(fog)(x)

My Answer:

i found (fog) to be x^2 +1 then i put in -1,0 and 1 to get the range

or should i do (fog)*(x) which would make it x^3 + x

Question 2:

determine which of the following questions are equal:

f:{1} -> N (the set N) and g:R-> R (the set R) be functions given by

f(x)=x-1 and g(x)=0

My Answer

f(x) not equal g(x)

because 0 doesn't belong to the set N ?

(i feel so dum asking these questions!)

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# Homework Help: Composition of functions - find range

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