Question

Graph the equation and state its domain and range. Use interval notation.x^2 + y^2 = 4

Answer 1

We know the the equation has the form of a circle, and that the center is in the coordinate (0,0) because c and w are not been modificated.

we also know that the radius of the circol will be:

$r=\sqrt[]{4}=2$

no with this information we can grph the equation:

Now in the graph we can see that x can just take values between (-2, 2) and y can take values of (-2, 2) so:

Domain: [-2, 2]

Range: [-2,2]