What is the domain of the relation graphed below?

{-5, -4, -3, 1, 2, 5}

Step-by-step explanation:

The domain of a function is defined as: the set of possible values of the independent value. This means, all the possible values that x can take. The independent value in a graph is represented in the x-axis.

So, in this graph, the values taken by x are -5, -4, -3, 1, 2 and 5.

We can see that there are no other values taken by x (the independent variable)

Therefore, the domain of the graphic is {-5, -4, -3, 1, 2, 5}

b.) 160 miles on a 5 gallons car

step-by-step explanation:

240/10=24 miles/gallon

160/5=32 miles/gallon

30/1=30 miles/gallon

168/6= 28 miles/gallon

32 miles/gallon is the most amount, so this is the best.