Your favorite dog groomer charges according to your dog's weight. If your dog is 10 pounds or under, the groomer charges $30. If
your dog is between 10 and 35 pounds, she charges $40. If your dog is 35 pounds or over, she charges $1.25 per pound. You have three dogs. Max weighs 25 pounds, Sally weighs 8 pounds and Goliath weighs 80 pounds. How much will your total cost be if you get all three dogs groomed?
If something is a function, every x-value, only has one (1) y-value. If the line x = 0 intersects the graph in two points, there are to values for y (instead of one). Therefore the graph is not a function of x.
