SOLUTION: f (x) = x2 − 4x +3 a)Find the domain and range of the function. b)Determine if it is odd, even or neither?Justify Your answer c)Skecth the graph

Algebra ->  Functions -> SOLUTION: f (x) = x2 − 4x +3 a)Find the domain and range of the function. b)Determine if it is odd, even or neither?Justify Your answer c)Skecth the graph      Log On


   



Question 151838: f (x) = x2 − 4x +3
a)Find the domain and range of the function.
b)Determine if it is odd, even or neither?Justify Your answer
c)Skecth the graph

Answer by nabla(475) About Me  (Show Source):
You can put this solution on YOUR website!
a)Domain means what values of x can the function take on. Can you see any that it can't? I don't--- must be all real numbers.
Range means what values of y can the function take on. For this we shall determine the vertex by x=-b/(2a). x=2 gives the minimum of this function. So all y values are greater than or equal to f(2)=4-8+3=-1.
b)A function is even if f(x)=f(-x).
Check it out.
f(x)=x^2-4x+3
f(-x)=x^2+4x+3
thus f(x) does not= f(-x) so it is not even.
A function is odd if f(-x)=-f(x)
So,
-f(x)=-x^2+4x-3
and f(-x) does not equal -f(x), so the function is neither odd nor even.
c) See below:
graph%28+300%2C+200%2C+-1%2C+5%2C+-3%2C10%2C+x%5E2-4x%2B3%29