Question

Find the equation of the tangent line to the graph y=f(x) at the indicated point , y=(3x^-2-2x^-3) ;(2,5)

Answer 1

tangent line is
y-y1=m(x-x1)

or let me write in a different way:
\[y=f'(a)(x-a)+f(a)\]
where a=2 in this case

Answer 2

you would just use the power rulenot the product