Practice problem
Given f(x)=xf(x)=xf(x)=x, which of the following functions represent vertical shifts?
f(x−2)f(x-2)f(x−2)
f(x−2)+3f(x-2)+3f(x−2)+3
3(x−7)+13(x-7)+13(x−7)+1
12x+1\frac{1}{2}x+121x+1
Type a concept, like “slope” or “photosynthesis”.