Mathematics - Definite Integration Question with Solution | TestHub

The graph of the function $\mathrm{y}=f(\mathrm{x})$, where $f:[\mathrm{a},\mathrm{b}]\to \mathrm{R}$ and a is a negative constant and b a positive constant, is shown. The function $\mathrm{F}:[\mathrm{a},\mathrm{b}]\to \mathrm{R}$ is defined by $\mathrm{F}(\mathrm{t})={\int }_0^{\mathrm{t}}f(\mathrm{x})\mathrm{dx}$.

Then F(t) > 0 for