2007-01-02 11:30:19 · 3 answers · asked by suril 1 in Science & Mathematics ➔ Mathematics
The doman is the imput of a function in algebra 1 or in any other algebra.
To find the doman of a function, think about what cannot be used as an imput. For example, if you have a function with variables in the bottom (a rational function) then you cannot let x take on values which would give a zero denominator. If you have a function with variables under the square root then you canoot let x take on a value which gives a negative under the radical.
For example
f(x) = (1/x), the domain would be all reals except 0
f(x) = sqrt (x+2) the domain would be all reals greater than or equal to -2
Etc
2007-01-02 13:59:16 · answer #1 · answered by Joni DaNerd 6 · 0⤊ 0⤋
Domain is the input (or x values) and Range is the output (or y values).
2007-01-02 19:33:47 · answer #2 · answered by dwobbit 2 · 3⤊ 0⤋
input. but you should think of it as dependent and independent variables. domain is independent and range is independent.
2007-01-02 19:35:17 · answer #3 · answered by Susie 2 · 0⤊ 1⤋