if $p (x) = 2 x + 3$ , then find $P (1), P (3), P (- 3)$ and $P (- 1)$

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Solution

The given function is $p (x) = 2 x + 3$ .

$p (1) = 2 (1) + 3$

$= 5$

$p (3) = 2 (3) + 3$

$= 9$

$p (- 3) = 2 (- 3) + 3$

$= - 3$

$p (- 1) = 2 (- 1) + 3$

$= 1$

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