Let the function \( f:[-7,0] \rightarrow R \) be continuous on \( [-7 \), 0 ] and differentiable on \( (-7,0) \). If \( …

Let the function \( f:[-7,0] \rightarrow R \) be continuous on \( [-7 \), 0 ] and differentiable on \( (-7,0) \). If \( f(-7)=-3 \) and \( f^{\prime}(x) \leq \) 2 for all \( x \in(-7,0) \), then for all such functions \( f, f(-1)+f(0) \) lies in the interval

[JEE Main 2020, 7 Jan (Shift 1)]