DVDs can be made in a factory in Colorado at a rate of 10 DVDs per $2.50, What is the unit cost per DVD?

Do not include units ($) in your answer.

25 cent per dvd

(tell me if im right)

4th option is correct xy=-10

if this was to u plzz mark me the brainliest

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value