How do you find the instantaneous slope of $y=4$ at x=100?

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Answer 1 · 2017-04-15T19:20:18

$0$

Take the derivative of $y=4$ . The derivative of any constant is $0$ .

$dy/dx=0$

There's no $x$ value to plug into. For every value of $x$ , the instantaneous slope is $0$ . This includes $x=100$

How do you find the instantaneous slope of y=4y=4 at x=100?