Question

Graph the circle with center at (4, 0) and radius 3. Label the center and at least four points on the circle. Write the equation of the circle.

Answer 1

the equation of a circle is (x-a)^2+(y-b)^2=r^2
r is the radius and (a,b) the center of the circle

Answer 2

the equation is (x-4)^2+(y-0)^2=3^2
or x^2+y^2-8x=-7

Answer 3

I got the first one, now what do I do after that?

Answer 4

the graph is easy, you know the center and the radius, to find the four points you just pick a value of x and solve for y

Answer 5

actually, it's easier using the pythagorean theorem