EDIT: the "x^5" needs an absolute value most likely since you could get negative values for x and that'll make the simplified form negative!
The "a" is just there like a constant to create variations of the graph.
96.8*$3.19= $308.792.
EDIT: I added an extra 0 when multiplying...should be 2900 and not 29,000!
tan (theta) = 4
You take tan^-1 or arc tan or "atan" on this website to solve for the angle:
so tan^-1(4) = theta
theta = 75.963756532074 = ~76 degrees.
No problem and it sure has a funny name...foot pound! Imagine a liter pound...or even a kilometer pound. !
It looks like this for some reason:
!