Charts are usually used for showing continuous changes, like changes in temperature or some kinds of
rates. They have usual coordinate system, so x-axis is horizontal and holds the categories while y-axis is
vertical and the values are spread along it.
This chart is a simple line chart with three series where are a lot of different features are enabled,
making the chart more informative. Three line series are responsible for showing the debt-to-income ratios
for three counties in the period of 20 years. DTI is a percentage of a consumer’s monthly gross income that
goes for paying debts. The less DTI is the more affordable and recommended it is to buy something (property
in those three counties in this sample).
markers and Axis
Text Markers are added to the chart to make it clear when it was wise to buy some property and when it
wasn’t. The lowest range, from 0% to 28% demonstrates the most favorable ratio for a deal; the second range
from the bottom highlights the ratio range when it was marginally affordable. In the years which are in the
third range, from 38% to 48%, it wasn’t really affordable to buy any items of property with a fixed-rate of
mortgage, the mortgage became interest-only. When the DTI rate overcame 48%, it was completely unaffordable
and profitless to buy property.