Domain is the possible values that, independent variable can take.
f(x) = 2x + 5
X can take all the real values, if we make a table of content, for each value of X, F(x) can take a real value.
X=1 f(x) = 7 , x= 2 f(x) =9 , x = 3 f(x) = 1,......
Domain of f(x) = 2x +5 infinity< X < + infinity
Range is all values that f(x) can take for values of X in domain
X = (f(x) 5)/2)
f(x) = 7 x=1 f(x)= 9 X = 2 , f(x) =1 x =3
Range of f(x) = 2X+ 5 : infinity< x < + infinity.
8/30/2013

Parviz F.