How do you use a graphing calculator to find the limit of #x^2-5x# as x approaches 5?
1 Answer
Dec 23, 2016
You simply plot the graph (as below) and look to see if the function is "well behaved" (ie no discontinuities etc.) at the value you are interested. E.g.
Explanation:
E.g. A "well behaved " function
graph{x^2-5x [-10, 10, -5, 5]}
Compared to
graph{1/(1-x) [-10, 10, -5, 5]}