Answer:
A
Step-by-step explanation:
Let's draw a picture (see attachment).
We know that this ray passes through (5, 9) in the first Quadrant and forms a right triangle if we drop a perpendicular line down from the point to the x-axis. We also know that opposite and adjacent sides of this triangle: opposite is 9 and adjacent is 5.
Tangent is opposite / adjacent, so we have:
tan(θ) = 9/5
The answer is A.
