If f'(x) is decreasing, then f”(x) is?
If the derivative of a function f(x), denoted as f'(x), is decreasing, it means that the slope of the tangent line to the graph of f(x) is decreasing as x increases
If the derivative of a function f(x), denoted as f'(x), is decreasing, it means that the slope of the tangent line to the graph of f(x) is decreasing as x increases. In other words, as we move along the x-axis from left to right, the steepness of the curve is decreasing.
The second derivative of a function, denoted as f”(x), represents the rate at which the derivative is changing. More specifically, it tells us whether the derivative is increasing or decreasing.
So, if f'(x) is decreasing, it implies that the rate at which f(x) is changing is decreasing. This means that the slope of the tangent line to f'(x) is also decreasing as x increases. In other words, as we move along the x-axis, the rate at which the curve of f'(x) changes is slowing down.
Therefore, we can conclude that if f'(x) is decreasing, then f”(x) must be negative or decreasing.
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