Answer
$ f\left( -0.7 \right)$ is positive
Work Step by Step
In the graph, we know the function is increasing in the interval $\left( -2,0 \right)$.
At $ x=-1$, $ f\left( x \right)=0$
Therefore, it will move up as the value of x increases.
Thus, at $ x=-0.7$, the value of $ f\left( -0.7 \right)$ will be positive.