Assuming only positive domain values, which statement is true of the graph that represents the total cost, y , in dollars for shipping items that weigh x ounces?
Answer
A
The graph is discontinuous at x is equal to 5 , x is equal to 10 , and x is equal to 15 .
B
For every 1 -ounce increase in weight, the total shipping cost increases by 3 point 7 5 dollars .
C
The range values for the set of the data are 10 , 14 , 17 , and 21 .
D
The left side of each horizontal interval is a closed circle, and the right side is an open circle.