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Definition of Functions

Complete the ...

Question

Complete the following table for the polynomial $y = p (x) = x^{3} - 2 x + 3$ .
$x$ $- 1$ $0$ $1$ $2$
$x^{3}$
$- 2 x$
$3$
$y$
$(x, y)$

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Solution

$y = p (x) = x^{3} - 2 x + 3 (Given)$
$x$ $- 1$ $0$ $1$ $2$
$x^{3}$ $- 1$ $0$ $1$ $8$
$- 2 x$ $2$ $0$ $- 2$ $- 4$
$3$ $3$ $3$ $3$ $3$
$y$ $4$ $3$ $2$ $7$
$(x, y)$ $(- 1, 4)$ $(0, 3)$ $(1, 2)$ $(2, 7)$

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