How would you test if an equation such as 4x-2y=11 is a function?

By putting it on a graph

Step-by-step explanation:

Kim rolls a dice and flips a coin.

For coin: we have either H or T  

For dice: we have 1, 2, 3, 4, 5 or 6

On a coin, the probability of heads:  

On a dice, the probability of getting 2 :

Hence, the probability of getting a 2 and a head is

=

So, the probability that Kim gets a 2 and a head is