Pre-Algebra Examples

$f (x) = | - \frac{3}{4} x - 1 |$

Step 1

Write $f (x) = | - \frac{3}{4} x - 1 |$ as an equation.

$y = | - \frac{3}{4} x - 1 |$

Step 2

Simplify each term.

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Step 2.1

Combine $x$ and $\frac{3}{4}$ .

$y = | - \frac{x \cdot 3}{4} - 1 |$

Step 2.2

Move $3$ to the left of $x$ .

$y = | - \frac{3 x}{4} - 1 |$

Step 3

The given equation $y = | - \frac{3 x}{4} - 1 |$ can not be written as $y = k x^{2}$ , so $y$ doesn't vary directly with $x^{2}$ .

$y$ doesn't vary directly with $x$