Compare the function with the parent function. Without graphing, what are the vertex, axis of symmetry, and transformations of the given function? y = 8x - 21 - 7

Afitness center has 2 membership plans one has a low dollar sign up fee of 15 dollars and costs 38 dollars per month to join. a second plan has a higher sign up fee of 78 dollars but a lower monthly fee of 31 dollars for what number of days of the month is the coat the same