93.9k views
3 votes
Need help with this questionAnd I know it looks cropped but yes that is the full question

Need help with this questionAnd I know it looks cropped but yes that is the full question-example-1

1 Answer

2 votes

For


y=√(-4x-36)

when it changed from,


y=√(x)

the translation process as:


\begin{gathered} y=√(-4x-36) \\ y=√(-4(x+9)) \\ y=2√(-(x+9)) \\ \Rightarrow y=2√(-x-9) \end{gathered}

It stretched by a factor of 2,


y=√(x)\rightarrow y=2√(x)

Reflected over the y-axis


y=2√(x)\rightarrow y=2√(-x)

Translated 9units leftwards


y=2√(-x)\rightarrow y=2√(-x-9)

Hence, the fourth option is correct.

User Darian Everett
by
3.3k points