Answer:
Correct option is C.
Step-by-step explanation:
i) Let y = total number of sandwiches.
ii) let x = number of sack lunches
iii) Each sack lunch has 3 sandwiches in it.
iv) Therefore total number of sandwiches, y = 3 × x
v) The graph that shows how the number of sandwiches, y, changes as the number of sack lunches, x, changes is C.
