38 Part I: The Questions
Classifying Discontinuities
252–255 Use the graph to find all discontinuities
and classify each one as a jump discontinuity, a
removable discontinuity, or an infinite discontinuity.
252.
253.
Horizontal Asymptotes
248–251 Find any horizontal asymptotes
of the given function.
248. y
x
x
x
= +
+
1 3
5
4
4
249. y
x
x
= −
+
5
5
2
2
250. y
x
x
x
=
+
4
2
3
251. y
x
x
=
+
2
2
Classifying Discontinuities
252–255 Use the graph to find all discontinuities
and classify each one as a jump discontinuity, a
removable discontinuity, or an infinite discontinuity.
252.
253.
Horizontal Asymptotes
248–251 Find any horizontal asymptotes
of the given function.
248. y
x
x
x
= +
+
1 3
5
4
4
249. y
x
x
= −
+
5
5
2
2
250. y
x
x
x
=
+
4
2
3
251. y
x
x
=
+
2
2