can some1 please explain. thanx in adv.
2006-11-09 08:12:07 · 4 answers · asked by The d 1 in Science & Mathematics ➔ Mathematics
Domain is the X coordinates, and range is the y coordinates.
When a problem says "what is the domain?"
They want to know if for any x value you put in, if there will be a real answer.
Range, yeah, thats just the Y values. :D
2006-11-09 08:16:14 · answer #1 · answered by pittoresque 2 · 0⤊ 0⤋
DD's answer is pretty good
domain is values you can put into the function
range is values you can get out.
Ex. y = x^2, domain is any x but range is alsways positve
y=cos(x) domain is any x, but range is [-1,+1]
y=tan(x), domain is all x exept where cos(x) = 0, ie, domain exclludes pi/2 +or-n*pi, range is all real numbers...
A very important concept in math....
2006-11-09 16:57:44 · answer #2 · answered by modulo_function 7 · 0⤊ 0⤋
The domain is the values that x can be.
The range are the values that y can be.
For instance
y=1/(x-1)
x can't be 1 and y can't be 0
so the range is all reals except 0 and the domain is all reals except 1
2006-11-09 16:18:43 · answer #3 · answered by rawfulcopter adfl;kasdjfl;kasdjf 3 · 0⤊ 0⤋
The domain of a function is the set of all the stuff you can
plug into the function.
- The range of a function is the set of all the stuff you can
get out of the function.
Let's do an example: f(x) = x^2 (that's x squared)
2006-11-09 16:19:04 · answer #4 · answered by DD 2 · 1⤊ 0⤋