Here, we want to use the graph to check that the ratios are equivalent
To do this, we need to establish that there is a linear relationship between the width and the length
We identify the points given and plot them on the graph
After plotting, we join the points with a straight line passing through the points
Now, after joinin the points with a straight line, we identify the length 20 and trace it to the line. At the point that it touches the line, we get the corresponding width value
We do same for the length 10
Then we fill in the values on the table, then reduce the terms to the lowest values
We will deduce that the lowest value for the points we got through th graph will be the same as that already on the table
Then, with this we can conclude that the ratios are equaivalent and we have succeeded in using the graph to show this