Functions
Find the rules for (fog)(x) and (gof)(x) and give the domain of each composite factor.
f(x)=3x-2 and g(x)=x+1
fog: 3x+1. Domain: All real numbers
gof; 3x-1. Domain: all real numbers
Find the rules for (fog)(x) and (gof)(x) and give the domain of each composite factor.
f(x)=x2-x and g(x)=x+1
fog: x2+3x+2 Domain: All real numbers
gof: x2+x+1 Domain: all real numbers
Find fog and gof and state domain in each case.
f(x)=(1-x)/x and g(x)=4/(x+1)
fog:(x-3)/4 Domain: x is not equal-1
gof: 4x Domain: x is not equal to 0
Find fog and gof and state domain in each case.
f(x)=x+(1/x) and g(x)=1+x
fog:(2x+x2+2)/(1+x), Domain: x is not equal-1 or 0
gof: (x2+x+1)/(x) Domain: x is not equal to 0