# Notación de funciones - Avanzado

##### Examples

###### Lessons

**Introducción a la notación de funciones**

Si $f(x) = 5x^2 - x + 6$ entonces encuentra las siguientes funciones:

- ${f(\heartsuit)}$
- ${f(\theta)}$
- ${f(3)}$
- ${f(-1)}$
- ${f(3x)}$
- ${f(-x)}$
- ${f(3x-4)}$
- ${3f(x)}$
- ${f(x)-3}$

**Expresa una función en forma $f($$)$**

Si ${f(x) = \sqrt{x},}$ escribe las siguientes expresiones en términos de la función ${f}$:

- ${\sqrt{x}+5}$
- ${\sqrt{x+5}}$
- ${\sqrt{2x-3}}$
- ${-8\sqrt{x}}$
- ${-8\sqrt{2x-3}}$
- $4\sqrt{x^{5}+9}-1$

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