When taking a definite integral that is bound by two points a and x where a is a constant and x is a variable, which quantity do I consider the upper limit of the integral and which quantity is the lower limit?(adsbygoogle = window.adsbygoogle || []).push({});

[tex]\int^a_x x [/tex]

this integral is written as

[tex] -\int^x_a x [/tex] in my book.

When I use integrals in my dynamics class I can easily tell which limit goes where but this is much tougher in math class because all I am given are random functions to integrate.

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# The bounds of an integral

**Physics Forums | Science Articles, Homework Help, Discussion**