Find the Composition $f ( x ) = x ^ { 2 } - 1$

question 48

Multiple Choice

Find the composition.
-If $f ( x ) = x ^ { 2 } - 1$ and $h ( x ) = \sqrt { x + 7 }$ , find $( h \circ f ) ( - 3 )$

• A)\(\sqrt { 9 }\)
• B) \(\sqrt { 15 }\)
• C) \(- 3 \sqrt { 6 }\)
• D) \(2 + \sqrt { 7 }\)

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