Include figures with caption for problem 2, 7, 8, and 10

latex/problems/problem7.tex

@@ -5,5 +5,10 @@
 The code can be found at https://github.uio.no/FYS3150-G2-2023/Project-1/blob/coryab/final-run/src/generalAlgorithm.cpp
 
 \subsection*{b)}
+Increasing the number of steps results in an approximation close to the exact solution.
+\begin{figure}[H]
+    \centering 
+    \includegraphics[width=0.8\linewidth]{images/problem7.pdf}
+    \caption{Plot showing the numeric solution of $u_{approx}$ for $n_{steps}$ and the exact solution $u_{exact}$.}
+\end{figure}
 
-\includegraphics{problem7}