What conic section is defined by all points in a plane where the difference between the lengths of segments x and y remains constant?

Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why

Its worth 10000000 points need asap if you answer correctly ill mark brainliest

Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.