CALCULUS
posted by ANONYMOUS on .
An equation of the line tangent to the graph of (5x  1)/(3x + 1) at the point where x = 1 is? Any ideas?

sure, I have an idea. Find the derivative to get the slope of the tangent line! Then use the pointslope form of the line's equation:
y = (5x1)/(3x+1)
y(1) = 4/4 = 1
y' = 8/(3x+1)^2
y'(1) = 8/16 = 1/2
tangent line is thus
(y1) = 1/2 (x1)