Is the point (-3, -4, 2) visible from the point (6, 7,0) if there is an opaque ball of radius 1 centered at the origin? Yes or no? Suppose that you stand at the point (6, 7, 0) and look in the...

Extracted text: Is the point (-3, -4, 2) visible from the point (6, 7,0) if there is an opaque ball of radius 1 centered at the origin? Yes or no? Suppose that you stand at the point (6, 7, 0) and look in the direction of a point that is not visible because it is behind the ball. You will then be looking at a point on the sphere. If (-3, –4, 2) is not visible from (6, 7,0), find the point on the sphere at which you are looking if you look in the direction of (-3, –4, 2). Otherwise, find the point on the sphere at which you look if you are looking in the direction of (-3, -4, 1). Point (x, y, z) =