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Type: Multiple-Choice
Category: Functions and Relations
Level: Grade 10
Standards: HSF-BF.A.1, HSF-BF.A.1c
Author: nsharp1
Created: 5 years ago

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Grade 10 Functions and Relations CCSS: HSF-BF.A.1, HSF-BF.A.1c

What are possible function rules for

$f(x)$ and

$g(x)$ , if

$(g@f)(x) = 9x^2 - 15x -13 ?$ There may be more than one correct answer.

$f(x) = x-2, \ \ g(x) = 9x^2+21x-7$
$f(x) = 3x+2, \ \ g(x) = x^2 - 9x + 1$
$f(x) = 3x^2 -5x - 5, \ \ g(x) = 3x-2$
$f(x) = 3x^2 - 5x - 13, \ \ g(x) = 3x$