**Re: graphing please help me!!**
me.... said:

hey all...

how do i graph the square root of 9-x^2

:?

umm.....do you mean

y = sqrt(9 - x^2)

I ask because in any problem where you are asked to graph, you should have two variables.

If it IS y = sqrt(9 - x^2)

you can plot points. Pick values for x, and find the corresponding values of y for each of them.

Of course, you need to recognize that you can't have a negative number under the radical sign, so 9 - x^2 >= 0. That limits the values you can use for x....you can't use any value of x which makes 9 - x^2 < 0.

Tell us what you have done to plot some points. When we can see your work, we can determine where it is that you need assistance.