explain what is domain restrictions and how to get it in the simplest way possible.
example:
what is the domain restrictions of the rational expressions (x + 3) / (x² - 9)?
example:
what is the domain restrictions of the rational expressions (x + 3) / (x² - 9)?
Answers & Comments
Answer:
Domain restrictions are the values that cannot be x. To get them, look at the denominator and find the value of x that will make the denominator equal to 0, and that would be the domain restriction
example:
x² - 9 = 0
Transpose -9
x² = 9
Square root
x = ±3
The restrictions are -3, and 3