Which relationships have the same constant of proportionality between y and x as the equation y=5/2x

Every time you drive you will experience a combination of driving conditions and environments.

Find the vertex of the function given below y=x^2-6x+1

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.