Find 2 "easy" points on the graph, and identify their coordinates. One such point would be (-4,1) and another would be (4,2).
run = 8 (from -4 to +4)
rise = 2 (from 0 to 2)
rise 2
slope = ------- = -------- = 1/4 y-intercept is (0,1)
run 8
equation of this line is thus y = mx + b, or y = (1/4)x + 1 (answer)