Answer
See the explanation below.
Work Step by Step
A definite integral $I$ of a function $y=f(x) \gt 0$ on an interval $[m,n]$ can be represented as the area under the graph of a function $f(x)$ over the interval $m \leq x \leq n$. In notation, we can write this as: $I=\int_m^n f(x) \ dx$
Examples for a definite integral are: To calculate the arc length of a curve, for determining the volumes in solids of revolution, etc.
