Poge: 1
5. Domain and Range - The Ementials
Domain The fnput) The set of al posibe
x values ton wick the tunction b dofinod.
TLink "wbat x an S plug in wilhout bruaking
Range (The Output): Tlu set of all posile
yvalues (aesulta ) you get after pluging in the
domain.
The Two Grolden Rules of Domain :
To find the domain, you must avoid these tuwo
Math Cnimes':
1. Division by zeso s flegal : The denomiata
e a tracion can NE VER be Zero.
Example: frn foas xto
2. Ne Negpives in uane Roob: you tannot
ake the square rotAot olo! a negative number (in
real numbors)
kxample: a fraction p
Tp: ķ a tnclion doesrt have
a square Joot (like = 9048), he
domain is lNally "Al Real Numbens '(-,o)
5. Domain and Range - The Ementials
Domain The fnput) The set of al posibe
x values ton wick the tunction b dofinod.
TLink "wbat x an S plug in wilhout bruaking
Range (The Output): Tlu set of all posile
yvalues (aesulta ) you get after pluging in the
domain.
The Two Grolden Rules of Domain :
To find the domain, you must avoid these tuwo
Math Cnimes':
1. Division by zeso s flegal : The denomiata
e a tracion can NE VER be Zero.
Example: frn foas xto
2. Ne Negpives in uane Roob: you tannot
ake the square rotAot olo! a negative number (in
real numbors)
kxample: a fraction p
Tp: ķ a tnclion doesrt have
a square Joot (like = 9048), he
domain is lNally "Al Real Numbens '(-,o)
