Question

Find the slope of the tangent line to the graph at the point (1,2). EQUATION BELOW

Answer 1

my function is \[\sqrt{1+3^{x}}\]

Answer 2

I know how to take the derivative i'm just thrown off by the "at the point" part. Which of those numbers do i plug in for a to use the whole f(a+h)-f(a)/h thing?

Answer 3

Do i just ignore the 2 and input the 1 as my a, or x.