difference quotient (option B)
Explanation:[tex]\frac{f(x\text{ + h) - f(x)}}{h}[/tex]
The above shows the rate of change over an interval a, b:
[tex]\begin{gathered} \frac{f(b\text{) - f(a)}}{b\text{ - a}} \\ \text{where f(b) = f(x + h)} \\ f(x)\text{ = f(a)} \\ h\text{ = b - a} \end{gathered}[/tex]
The term that is used to refer to the rate of change over an interval is difference quotient (option B)
