Precalculus Examples

Given $g (x) = 4 x + 4$ ; find $g (4)$

Step 1

Replace the variable $x$ with $4$ in the expression.

$g (4) = 4 (4) + 4$

Step 2

Simplify $4 (4) + 4$ .

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Step 2.1

Remove parentheses.

$4 (4) + 4$

Step 2.2

Multiply $4$ by $4$ .

$16 + 4$

Step 2.3

Add $16$ and $4$ .

$20$