Find the domain of each function.
f(x) = 3x^2/x-2
2007-10-26 07:00:36 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
When x-2 = 0 the f(x) is undefined
so the domain is all real except x = 2
2007-10-26 07:06:47 · answer #1 · answered by norman 7 · 1⤊ 0⤋
The function can be defined, except when a fraction has a denominator which is 0. The way you have it written, it would be when x = 0. The domain would be all real numbers, except the number 0.
If f(x) = 3x^2 / (x-2), then the domain is all real numbers except the number 2.
2007-10-26 07:16:22 · answer #2 · answered by Hiker 4 · 0⤊ 0⤋
The domain is all real numbers except 2. The reason is if you plug in 2 for x, your denominator will be 0. Since you can't divide by 0 that "answer" is undefined.
2007-10-26 07:25:10 · answer #3 · answered by TiredofWorking 3 · 0⤊ 0⤋
http://www.purplemath.com/modules/fcns2.htm
Here is a good website for further questions.
To find the domain you set the denumerator (the bottom) equal to zero, then solve.
x-2=0 so the denominator is x=2 which is just 2
2007-10-26 07:09:07 · answer #4 · answered by lgd1356 1 · 0⤊ 0⤋
27X^4-2 what do i know im only 10
2007-10-26 07:05:29 · answer #5 · answered by Anonymous · 0⤊ 3⤋
2/3
p.s. ur hottt
2007-10-26 07:06:08 · answer #6 · answered by kyle f 2 · 0⤊ 2⤋