# calculus

posted by
**Rob**
.

i'm having trouble with a problem in my calc class...it isn't really calculus yet since we're still in the review section but it goes somethign like this: ( don't have it in front of me)

a rational function is defined by: R/(x-K) where R and K are constants. find R and K for a function that passes through these two points: (2,5) and i can't remember the other one...but if someone can describe how to do a similar problem or how to go about it that'd be great

y= R/(x-k)

PUt in the x,y values. Do it for the next point also. You end up with two equations, two unknowns (R and K). You can solve it.