The value of y varies directly with x.

Ahome improvement store rents it’s delivery truck for $19 for the first 75 minutes and $4.75 for each additional 1/4 hour. if a customer rented the truck at 11: 10 am and returned the truck at 1: 40 pm the same day, what would his rental cost be?

Graph the linear function using the slooe and y intercept

If sin(x) = 0 and cos(x) = 1, what is tan(x)?