What are the domain and range of the function? f (x) = - 4 (sqrt) x

Step-by-step explanation:

f (x) = - 4√x

1) the domain : x ≥ 0 : D = [0; +∞[

2) the rang of : f is the domain of the inverse

y = - 4 √x calculate x ... (x ≥ 0)

y ≥ 0 : y² = (-4 √x) ²

y² = 16 x

x = y²/16

the inverse is : g (x) = x² / 16 ... x ≥ 0 the range is : D = [0; +∞[ (same domain)