Question

The position of an object at time t is given by s(t) = -8 - 9t. Find the instantaneous velocity at t = 1 by finding the derivative.

Answer 1

answer will be -14
negative sign shows direction
its derivative will be
s'(t)=-14

Answer 2

If i'm wrong please correct me :)

Answer 3

I think thats correct, I have to write out how to work the problem though bu using difference quotient? @annas