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4) y = x - 1 - 4 A) Domain: x 21 Range: y s-4 B) Domain: x 2-1 Range: y 2-4 C) Domain: x 2-1 Range: y 24 D) Domain: x 21 Range: y 2-4

User Yshrsmz
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1 Answer

5 votes

we have the function


y=\sqrt[\square]{x-1}-4

Remember that the radicand must be positive

so


\begin{gathered} x-1\ge0 \\ x\ge1 \end{gathered}

therefore

the domain is the interval [1, infinite)

Find out the range

For x=1

y=-4

so

the range is


y\ge-4

answer is option D

User Geofrey Ssekirime
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