Precalculus Examples

$f (\frac{1}{4}) = 1 - (\frac{4}{x})$

Step 1

Replace the variable $x$ with $\frac{1}{4}$ in the expression.

$f (\frac{1}{4}) = 1 - (\frac{4}{\frac{1}{4}})$

Step 2

Simplify the result.

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Step 2.1

Simplify each term.

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Step 2.1.1

Multiply the numerator by the reciprocal of the denominator.

$f (\frac{1}{4}) = 1 - (4 \cdot 4)$

Step 2.1.2

Multiply $- (4 \cdot 4)$ .

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Step 2.1.2.1

Multiply $4$ by $4$ .

$f (\frac{1}{4}) = 1 - 1 \cdot 16$

Step 2.1.2.2

Multiply $- 1$ by $16$ .

$f (\frac{1}{4}) = 1 - 16$

Step 2.2

Subtract $16$ from $1$ .

$f (\frac{1}{4}) = - 15$

Step 2.3

The final answer is $- 15$ .

$- 15$

Step 3