Answer:
b^2 = 46
b = √46 (or 6.78 rounded)
It’s a because you have to calculate and do the formal slope
Answer:
5x+2
Step-by-step explanation:
I think it is 5x+2
I'm going to assume you've learn sin, cos, and tan. To find a you must do:

Once you find a, you can use the Pythagorean Theorem to find b:

Or you can do:

You can find these functions on a scientific calculator. Let me now if you need more help.