Real life graphs

On this worksheet, I had to find the correct answer on the graphs which are based on real life. I also had to explain the changes and how the graphs are shaped and the different scenarios the graph was explaining.

I think I got the part where I had to interpret the shape of the graph wrong because I think I didn't interpret the graphs really well. I found the interpreting the curved graphs the hardest because I got quite confused by which direction does the graph go.