Practice problem
For f(x)=x+3f(x)=x+3f(x)=x+3, what is f−1(x)f^{-1}(x)f−1(x)?
f−1(x)=y+3f^{-1}(x)=y+3f−1(x)=y+3
f−1(x)=y−3f^{-1}(x)=y-3f−1(x)=y−3
f−1(x)=x−3f^{-1}(x)=x-3f−1(x)=x−3
f−1(x)=x+3f^{-1}(x)=x+3f−1(x)=x+3
Type a concept, like “slope” or “photosynthesis”.