Graph the function f(x)=3/2x−4.

Use the line tool and select two points to graph.

Try this website called wolfram Alpha. It's an easy-to-use but advanced calculator. It gives you lots of information for every query. Here's a direct link to the answer to your question on Wolfram Alpha: http://www.wolframalpha.com/input/?i=h(x)%3D(x%2B2)-1. Hope this helps!