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→Example 1: added an infobox and a picture that represents the first example
== Example 1==
== Example 1==
{| class="infobox" style="text-align:center;"
<table class="infobox" style="float: right; text-align: center; font-size: 100%; clear:right; background:white; border: 2px solid blue;" cellspacing="0" cellpadding="2" width="33%">
|-
|[[Image:Firstexampledintegralsqa9.png|300px|Click on the image to get a better view.]]
|-
|A graph representation of <math>f(x)</math> in Example 1.
|-
|The ''thin blue line'' is f(x).
|-
|The ''yellow'' is what we add to get the value of the integral. It is the '''area'''.
|-
|The ''vertical green line'', the '''lower bound''', is at -3 because the lower bound of the definite integral is located at -3.
|-
|Likewise, the ''red line'' is the '''upper bound''', which is at 5.
|-
|Click on the image to get a better view.
|}
This is a very simple definite integral:
This is a very simple definite integral:
:<math>\int_{-3}^{5} x^2 dx</math>
:<math>\int_{-3}^{5} x^2 dx</math>