What are the 1-4 you have numbered? but to, summarize, if you can draw a vertical line and hit more than one point anywhere on the graph its not a function, so B, and if there are any bends or curves, but still is a function, it's a non linear function, like the other two.
Answer:
<h2>5</h2>
Step-by-step explanation:

I am solving the equation in simplest way
Line:-1



Line:-2



To solve this question, we can use the tangent. The adjacent leg to the angle will have a length of 9.3 and the opposite leg will have a length of 7.4
Using these, we can create an equation to solve for unknown angle (let it be x) using the tangent.

Take the inverse tangent, or arc tangent, on both sides.


Your answer is the first choice. I hope this helps! :)