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Introduction

Function f is...

Question

Function f is defined by $f (x) = 2 x^{2} + 6 x - 3$ . Find the value of $f (- 2)$ .

-2

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-7

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-8

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Solution

The correct option is B -7
$f (x) = 2 x^{2} + 6 x - 3$
$f (- 2) = 2 (- 2)^{2} + 6 (- 2) - 3$
$f (- 2) = - 7$

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