Answer:
an =a1+(n−1)d
Step-by-step explanation:
Don't think so.
/ᐠ。ꞈ。ᐟ\
*Has to add more words to be able to answer this*
You just have to figure it where you can place 2 solid lines and get 10 triangles ( i can only get 9). Think about the pentagon in the middle of the triangles and see if somehow you can create more triangles using only the two straight lines.
Answer:
The answer is opposite/adjacent
Step-by-step explanation:
Based on this saying that SohCahToa
Which means sin=opposite/hypotenuse
Cos=adjacent/hypotenuse
Tan=opposite/adjacent
The opposite is the side facing the right angle
The hypotenuse is the longest side of the triangle
The adjacent is the line that has both the right angle and opposite angle
Simple...
you have:

Graph is attached.
Some ordered on this line are-->>
Using x y
(-4,-0.5)
(-3,-0.667)
(-2,-1)
(1,2)
(3,0.667)
(4,0.5)
Thus, your answer.