Precalculus Examples

$g (x) = - x - 1$ ; find $g (- 4)$

Step 1

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

$g (- 4) = - (- 4) - 1$

Step 2

Simplify $- (- 4) - 1$ .

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Step 2.1

Remove parentheses.

$- (- 4) - 1$

Step 2.2

Multiply $- 1$ by $- 4$ .

$4 - 1$

Step 2.3

Subtract $1$ from $4$ .

$3$