What does this f'(x) graph tell you about f(x)?
Автор: Calculus by Christee
Загружено: 2022-04-11
Просмотров: 1201
Описание:
High school math teacher explains what an f'(x) graph tells you about f(x)!
f'(x) is the derivative of f(x), which means it represents the slope of the tangent line at each point on f(x).
-If f'(x) is positive, then f(x) is increasing.
-If f'(x) is negative, then f(x) is decreasing
-If f'(x) changes from positive to negative, f(x) has a relative maximum at that x value.
-If f'(x) changes from negative to positive, f(x) has a relative minimum at that x value.
-If f''(x), or the derivative of f'(x) is equal to 0 or is undefined AND changes signs, then f(x) has a point of inflection at that x value.
-If f''(x), or the derivative of f'(x), is positive, then f(x) is concave up.
-If f''(x), or the derivative of f'(x), is negative, then f(x) is concave down.
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