Answer:
130°
Step-by-step explanation:
50 + x = 180°
Sqrt(4/225)
= 2/15.
The final answer is 2/15~
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)
I think it's just determining what the negative means. Negative with the x axis means to the left (because the left side is negative). Negative with the y axis is down (because the down side is negative.) So once you know that, it's obviously D because both are negative.
I hope that helped!
- mathwizzard3
