Determine if this data is an example
of a function.
(-4, 3); (-2, 1); (0, -1); (4, 3)

Amuffin recipe, which yields 12 muffins, calls for cup of milk for every 1 cups of flour. the same recipe calls for cup of coconut for every cup of chopped apple. to yield a batch of 30 muffins, how much flour will be needed in the mix?

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).