math problemo?

Question

i need to give an example of a DOMAIN and of a range pleaz help ASap

Answer 1

Domain = {1,2,4}
Range = {10,20,40}

The function is f(x) = 10*x

Answer 2

The domain of a function consists of its possible input values.
The range of a function consists of its possible output values.

For example, f(x) = sin(x) has a domain that goes from negative infinity to positive infinity, since if you plug in any real number for x, sin(x) exists.

However, the range of sin(x) only goes from -1 to +1. No matter what number you plug in for x, sin(x) will be somewhere between -1 and +1.

Here's another example in which the domain is restricted: Let f(x) be the square root of (x-2).

The number under the square root can't be negative, so (x-2) must be greater than or equal to zero. Therefore, x must be greater than or equal to 2, so the function has a domain that goes from 2 to positive infinity. If you plug in, say, x=0, then you end up with the square root of -2, which doesn't exist.

Hopefully that helps!

Answer 3

let y=f(x)
here the values of x will determine the values of y
suppose set A represents the values of x and set B the corresponding values of f(x) then
set A will be the Domain nd set B will be the Range

Answer 4

domain is really the set of x coordinates and the range is the set of the y coordinates.

Answer 5

y = 5 + x

Domain: x
Range: y

Answer 6

A={1,2,3,4,5}
B={11,21,31}
Answer is
R={(1,11),(2,21),(1,31)}
or
R={(1,11),(3,21),(5,31)}
& so on..............