2007-06-27 17:05:51 · 5 answers · asked by satin0722 1 in Science & Mathematics ➔ Mathematics
Since, f(x) = x/(x-7) is not undefined for any real value of x except x =7. The set of real numbers except 7 is the domain of the function. In mathematics it is written as: R-{7}. where R is the set of all real numbers.
2007-06-27 17:10:59 · answer #1 · answered by Shishir P 2 · 0⤊ 0⤋
I'm assuming that you mean find the domain of f(x) = x/(x-7)
We cannot divide by zero because then the function would be undefined, so we set x-7 =0 and solve for x. We get x=7, so namely if x=7 then the denominator will be zero. So the domain of the function is all real numbers but 7.
2007-06-28 00:10:48 · answer #2 · answered by marvin0258 3 · 0⤊ 0⤋
The domain is x < 7 < x.
2007-06-28 00:17:23 · answer #3 · answered by Helmut 7 · 0⤊ 0⤋
x/(x-7) is undefined when x=7.....this is because you can not divide by zero. The domain can be anything except 7....x belongs to {R/7}......this notation means all Real numbers except 7.
2007-06-28 00:12:28 · answer #4 · answered by Anonymous · 0⤊ 0⤋
All real numbers except x = 7
2007-06-28 00:09:25 · answer #5 · answered by sahsjing 7 · 0⤊ 0⤋