Calculatrice du taux de variation moyen

Trouvez le taux de variation moyen d'une fonction étape par étape

La calculatrice trouvera le taux de variation moyen de la fonction donnée sur l'intervalle donné, en montrant les étapes.

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Solution

Your input: find the average rate of change of $$$f\left(x\right)=x^{2}$$$ on the interval $$$\left[1,3\right]$$$.

The average rate of change of $$$f\left(x\right)$$$ on the interval $$$[a,b]$$$ is $$$\frac{f(b)-f(a)}{b-a}$$$.

We have that $$$a=1$$$, $$$b=3$$$, $$$f\left(x\right)=x^{2}$$$.

Thus, $$$\frac{f(b)-f(a)}{b-a}=\frac{{\color{red}{\left(3\right)}}^{2}-\left({\color{red}{1}}^{2}\right)}{3-\left(1\right)}=4$$$.

Answer: the average rate of change is $$$4$$$.