The given function f: R → R is many to one function. Give reason. (Understanding)
The given function $f: R \to R$ is many to one function. Give reason. (Understanding)
Answer
Answer
Official answer key
The curve crosses the $x$-axis at three different points, so for three different values of $x$ the value of $y$ is zero. More than one element of the domain is mapped to the same point $0$, so $f$ is many-one.
