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)

answer: d. $20

step-by-step explanation:

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