Numerical Integration with Infinity as the upper limit

How can I integrate this without the use of syms. I need to sub values into the final integrated equation and be able to plot the results on a graph.

[Jim Riggs]

This integral is easy to solve. Try using your math skills

Answer 1

[Jim Riggs]

f(x) = 8*e^(-x/10) dx

Integral f(x) = -80*e^(-x/10) + C