Trigonometría Ejemplos

$f (x) = x (x + 5)$

Step 1

Simplifica $f (x)$ .

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Aplica la propiedad distributiva.

$f (x) = x \cdot x + x \cdot 5$

Simplifica la expresión.

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Multiplica $x$ por $x$ .

$f (x) = x^{2} + x \cdot 5$

Mueve $5$ a la izquierda de $x$ .

$f (x) = x^{2} + 5 x$

Step 2

The word linear is used for a straight line. A linear function is a function of a straight line, which means that the degree of a linear function must be $0$ or $1$ . In this case, The degree of $f (x) = x^{2} + 5 x$ is $2$ , which makes the function a nonlinear function.

$f (x) = x^{2} + 5 x$ is not a linear function