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the function y = f(x) is graphed below. what is the average rate of cha…

Question

the function y = f(x) is graphed below. what is the average rate of change of the function f(x) on the interval -9 ≤ x ≤ -8? answer attempt 1 out of 2

Explanation:

Step1: Identificar la fórmula

La tasa media de cambio de una función $y = f(x)$ en el intervalo $[a,b]$ está dada por $\frac{f(b)-f(a)}{b - a}$. Aquí, $a=-9$ y $b = - 8$.

Step2: Leer valores del gráfico

Observando el gráfico, $f(-9)=- 20$ y $f(-8)=40$.

Step3: Calcular la tasa media de cambio

Sustituimos en la fórmula: $\frac{f(-8)-f(-9)}{-8-(-9)}=\frac{40 - (-20)}{-8 + 9}=\frac{40 + 20}{1}=60$.

Answer:

60