The equation of a curve is , where k is a constant.
a) Find in terms of k, the gradient of the tangent at point A where x=1.
b) Given that the tangent at point A passes through the point B(5,1), find the value of k.
Attempt
a)
hi
for (a) , you are correct, then substitute x=1 .
(b) it's similar to your previous question . Find the point (A) where the tangent touches the curve in terms of k , then find the gradient of AB which is also the gradient of tangent .