Finite Math Examples

$f (x) = - 3 x + 8$ , $x = - 1$

Step 1

Replace the variable $x$ with $- 1$ in the expression.

$f (- 1) = - 3 \cdot - 1 + 8$

Step 2

Simplify the result.

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Step 2.1

Multiply $- 3$ by $- 1$ .

$f (- 1) = 3 + 8$

Step 2.2

Add $3$ and $8$ .

$f (- 1) = 11$

Step 2.3

The final answer is $11$ .

$11$

Step 3