Question

The limit (lim as h approaches o of (((-3+h)^4)-81)/h) represents the derivative of a function f at a number c. Determine f and c.

Answer 1

is f(x) = -3^4?

Answer 2

make a guess, i bet you are right (don't think hard, think easy)

Answer 3

or positive 3?

Answer 4

ok think a little
\(c=-3\)

Answer 5

but \(f(x)\) is a function, should have an \(x\) in it

Answer 6

oh so f(x)=x^4?

Answer 7

yes