# Dividing functions

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##### Examples
###### Lessons
1. Determine the Quotient of Two Functions and State Its Domain
Write an expression in the simplest form for $(\frac{f}{g})(x)$
State the domain restrictions
1. $f(x)=3x-8$
$g(x)=x+2$
2. $f(x)=4x^3+5x^2$
$g(x)=x$
3. $f(x)=2x^2+4x-30$
$g(x)=2x-6$
4. $f(x)=x-3$
$g(x)=x^2+2x-15$
2. Operations of Functions – In a Nutshell
Consider the functions $f(x)=\frac{x}{x+5}$
and $g(x)=\frac{3x}{x-2}$
1. state the domain of $f(x)$
and $g(x)$
2. write an expression in the simplest form for each
of the following and state the domains
i) $(f+g)(x)$
ii) $(f-g)(x)$
iii) $(fg)(x)$
iv) $(\frac{f}{g})(x)$
3. evaluate $(\frac{f}{g})(4)$
in 2 different ways
3. Sketch the Quotient of Two Functions
Consider the functions $f(x)=2x^2+4x-30$
$g(x)=20x-60$
1. Determine the equation of the function
$h(x)=(\frac{g}{f})(x)$ and state the domain restrictions
2. Sketch the graph of
$h(x)=(\frac{g}{f})(x)$
###### Topic Notes
Dividing functions: $(\frac{f}{g})(x)=\frac{f(x)}{g(x)}$
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