MCQ
The function $f : A \rightarrow B$ defined by $f(x) = -x^2 + 6x- 8$ is a bijection if,
- ✓$\text{A}=(-\infty,3]$ and $\text{B}=(-\infty,1]$
- B$\text{A}=[-3,\infty)$ and $\text{B}=(-\infty,1]$
- C$\text{A}=(-\infty,3]$ and $\text{B}=[1,\infty)$
- D$\text{A}=[3,\infty)$ and $\text{B}=[1,\infty)$
