Answer:
a) See attachment for graph
b) Not a function
Step-by-step explanation:
The given set of ordered pairs are:
(3.1, 5.1), (–1.9, 5.1), (–4.9, 3.1), (–4.9, –2.9)
We plot the points and connect them with straight lines to obtain the graphs in the attachment.
We can see from the graph that a vertical line drawn at x=-4.9 cuts the graph at many points.
Since the graph of the relation fails the vertical line test, it is not a function.
You can also see from the ordered pairs that -4.9 has two different y-values 3.1 and -2.9.
