Use the definition to find the derivative of f(t) = 2t+1 t+3 get full credits)

Explain how the real-world meaning of a derivative is related to the independent (input) and dependent (output) variables of the problem. Use your explanation in a real-world contextual situation of your choosing. Also, include a sketch of the two axes (independent and dependent) that you use to help clarify your discussion for the reader. Please explain and sketch a graph of two axes.

Do you use x-coordinates or y-coordinates when describing where functions increase, decrease, or are constant?

graph the derivative

> Use the derivative to explain why the function f(x) = x +x³ is a one to one function.