mathdad
Full Member
- Joined
- Apr 24, 2015
- Messages
- 925
The set of values that a variable may assume is called the domain of the variable.
Find the domain of 5/(x - 4).
If x = 4, the denominator becomes 0, which is not defined.
I set the denominator to be 0 and solve for x.
x - 4 = 0
x = 4
Domain = All real numbers except for 4.
In set-builder notation:
D = { x | x ≠ 4 }
Is this correct?
Find the domain of 5/(x - 4).
If x = 4, the denominator becomes 0, which is not defined.
I set the denominator to be 0 and solve for x.
x - 4 = 0
x = 4
Domain = All real numbers except for 4.
In set-builder notation:
D = { x | x ≠ 4 }
Is this correct?
