algebra, 1/28

a-c block:  pg. 244, # 13-20 ( find slope=, y-int=   , but don't graph these)
                                #22-33 (find slope=, y-int= ,  AND GRAPH these ones)

d-block:   1) pg. 282-283, #21-23, 37-39, 42-49
                2) study for quiz 5.1-5.2 on Friday