Calculate the instantaneous rate of change at x = -1

The function that describes the graph above looks like this:


The rate of change at a particular moment is the same as the value of the derivative at a particular point. So, let's find a derivative of your function:


Now, let's replace variable with given value :


Solution:the instantaneous rate of change at  is -4.

Multiply 9 and 67. then multiply 3 with 67. lastly the answer that you got for 9x67 is to be subtracted by the answer you got for 3x67

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