Question

what is the instantaneous rate of change at x=-1 of the function f by given f(x)= x^2-3/ 2x-1

Answer 1

do you mean \[\frac{ x ^{2}-3 }{2x-1 }\]

Answer 2

here's a tip
always find the general derivative before you apply the value of x
you can always plug the value -1 from the beginning, but what if you were given other x-coordinates?

Answer 3

if you know the rules yet, either the power rule or the quotient rule works

Answer 4

no i was only given one coordinate