/Users/rpryor/Desktop/SlopeFields/mth094_slope_point

xmax = 10.4 (slider from -5 to 200)
xmin = -10.6 (slider from -200 to 5)
ymax = 97.8 (slider from -5 to 200)
ymin = -89.8 (slider from -200 to 5)
A = (5, 5)
m = -1 (slider from -20 to 20, step 0.25)
b: y(A) - (m * x(A))
f(x) = (m * x) + b