y = -1/2x - 3 is the correct equation
The rate of change is 1.
Use the slope formula 5 - 0 is the rise and 5 - 0 is the run
5/5 = 1
Answer:the answer is 45x
Step-by-step explanation:
Answer:

Step-by-step explanation:
we know that
The area of the shaded region is equal to the area of triangle plus the area of semicircle
so

we have

Find the height of the right triangle applying the Pythagorean Theorem


The radius of the semicircle is half the height of triangle

substitute in the formula


The tangent of the angle is
... tan(α) = ay/ax = -8.6/6.1
Then the angle (measured CCW from +x) is
... α = arctan(-86/61) ≈ 305°