9.
a.
х
Y
and
one
-8
12), (8, 3)
Is the relation shown a function? Why?
No, because the element 12 in X has two
elements in Y paired with it.
b. No, because each element in X has only
element in Y paired with it.
c. Yes, because each element in X has only
element in Y paired with it.
d. Yes, because the element 12 in X has two
elements in Y paired with it.
10. Which graph does not po the vertical line test?
5
12
one​