Practice problem
Which of the following functions could be represented by the mapping above?
f(x)=12x+2f(x)=\frac{1}{2}x+2f(x)=21x+2
f(x)=12x2+2f(x)=\frac{1}{2}x^2+2f(x)=21x2+2
f(x)=12x2f(x)=\frac{1}{2}x^2f(x)=21x2
f(x)=x2+2f(x)=x^2+2f(x)=x2+2
Type a concept, like “slope” or “photosynthesis”.