Question

I need to graph both set of data on one coordinate plane. Connect the ordered pairs in the first set using solid line. Connect the ordered pairs in the second set using dashing line. The numbers:
High temp (F):
71.9
72.9
77.3
82.9
88.3
90.7
92
91.6
89.2
83.7
77.1
72.6

Avg Low temp (F)
50.1
50.9
54.9
60.6
66.6
71.3
72.9
73.4
72.3
66
56.4
51
Help please!!