There is a 35% chance she will arrive after 8:30AM
To determine which relation is a function, we can perform something called the vertical line test. We cover the graph in repeating vertical lines and if one vertical line connects with more than one point of the relation, the relation is not a function.
The relation in the bottom right corner is the only relation that passes the vertical line test.
To get your answer, you would divide your distance by your speed. You should be going about 1.4 miles per hour.
