Question

find the slope of the tangent line to the graph of f(x)= x^-9 ( is it -9x^-10) ?

Answer 1

drop and subtract; yes

Answer 2

so its right?

Answer 3

that is the equation for the slope of the curve for any given point; all you need to complete it is some point

Answer 4

it didnt have a point given. however for the next question- find the equation of the tangent line of f(x)= x^-9 it doest give points (-1,-1) so then what would i do next?