We know that
Domain:
It is all possible values of x for which any function is defined
we are given function

we can see that our function goes from left to right side
so, domain will be all real numbers
Range:
Range is all possible values of y
we can see that
largest y-value is 4
smallest y-value is -inf ...because it keeps going downward
so, range is
![(-\infty , 4]](https://img.qammunity.org/2019/formulas/mathematics/middle-school/5ub0x48hfedeym2dfrlut14xuxyy9eipow.png)
so, option-C...........Answer