The function's domain appears to be all real numbers, since it's a linear function. There doesn't seem to be any interval with unexpected behavior based on the tests.

Now, let's calculate the slope (m) by using the results from two different points. For example, we can pick the outputs of x = -100 and x = 100:

m = (y2 - y1) / (x2 - x1) = (-77.1 - 74.9) / (100 - (-100))

We can calculate the y-intercept (b) by choosing a point and using the slope, for example, x = 0 and y = 2.9:

b = y - m * x

