Can I please get help making this graph and answer a few questions please?

For the graph would you please mind giving me a brief analysis of it?

need graph using the data in Extension Activity Data Table 3 of velocity, v, vsWavelength, l (v vs l). {Note: variables are identified for graphing as y vs x} On the graph insert a best fit line and display the equation on the graph (title the graph, label the axis with quantity and units). Consider whether the data point (0, 0) should be included on your graph; include the point (0, 0) if it is in agreement with the experiment and relationships between the variables.