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Type: Multiple-Choice
Category: Functions and Relations
Level: Grade 11
Standards: HSF-BF.B.4, HSF-BF.B.4a
Author: jjstanley
Last Modified: 7 years ago

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Grade 11 Functions and Relations CCSS: HSF-BF.B.4, HSF-BF.B.4a

Which of the following is the inverse of

$y=sqrt(2x^2-8), \ x in [2,oo)$ ?

$y=+-sqrt(-2x^2+8) \ , x in [2, oo)$
$y=sqrt((x^2+8)/2), \ x in [0, oo)$
$x=+-sqrt(2y^2)-8$
$y=2(x^2+8)^2 \ x in [0,oo)$