|What version of Excel are you using?|
I am assuming that Mon, Tues, Wed are your 3 series and that your Y values range from 8 to 1,388.
If that's correct, then create a line chart, right-click the Y axis and choose Format Axis.
In Excel 2003, choose the Scale tab and click the box next to Logarithmic scale.
In 2007/2010, you can choose Logarithmic scale and then choose a "Base" value to change the scale of the Y axis.
This will give you more "room" for your lower values so they don't hover around the X axis (near zero).
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