Calculus Examples

$f (x) = x^{2} + 11 x - 15$ ; $x = 1$

Step 1

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

$f (1) = {(1)}^{2} + 11 (1) - 15$

Step 2

Simplify the result.

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Step 2.1

Simplify each term.

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Step 2.1.1

One to any power is one.

$f (1) = 1 + 11 (1) - 15$

Step 2.1.2

Multiply $11$ by $1$ .

$f (1) = 1 + 11 - 15$

Step 2.2

Simplify by adding and subtracting.

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Step 2.2.1

Add $1$ and $11$ .

$f (1) = 12 - 15$

Step 2.2.2

Subtract $15$ from $12$ .

$f (1) = - 3$

Step 2.3

The final answer is $- 3$ .

$- 3$

Step 3