Question

Give the domain, range and zeros of the function?
f(x)= (square root) 9-x

Answer 1

\[\sqrt{9-x}\]

Answer 2

That is what the equation really looks like.

Answer 3

the domain would be {x|x< or equal to 9} and the range is {y|yER}

Answer 4

the x intercept or zero is when x=0 which is just 3
the y intercept is when y=0 which is just 9
so the zeros of the function are 3 and 9

Answer 5

oh hold on the range has to be {y>0} sorry about that.

Answer 6

the function can never be negative because of the square root

Answer 7

Oh Okay, thank you for the help, so far i am following what you are telling me, and thank you for the help! :)

Answer 8

no problem :)