• Choice B
    13. A circle with the equation x2 + y2 = 144 is graphed in the standard (x,y) coordinate plane. At what points does the circle intersect the x-axis?

    The equation of a circle in the standard (x,y) plane is:

    (xh)2+(yk)2=r2

    Where (h,k) is the center of the circle and r is the radius.

    r2=144 =>r=12

    The circle intersects with the x-axis at (0,12), (-12,0)

    Skills you are tested for:

    Was this explanation helpful?
  • Comments

    To leave a comment,