Question

What is the domain and range of `y=abs(x)-4`?

Answer 1

D: all real values, R: `y>=-4`

Explanation:

The domain, or possible x values, is All Real Values.

The resultant range:

when `x=0, y=-4`

and if we evaluate values both greater and smaller than 0, y will only get bigger (remember that the negative values of x will be turned to positive by the absolute value sign). And so the range is `y>=-4`