Technology makes it easier to find the domain and range of functions using different tools and methods. Here’s how:

1. Graphing Calculators:

   • These handy devices help students see functions on a graph.
   • This makes it simpler to spot the x-values (which is the domain) and y-values (which is the range) directly from the drawing.
   • For example, for the function ( f(x) = \sqrt{x-1} ), the domain is ([1, \infty)).

2. Software Applications:

   • Programs like Desmos and GeoGebra allow students to draw graphs of functions.
   • They can easily see the domain and range on these graphs.
   • Plus, students can use sliders to change some values and see how that affects the range.

3. Calculus Tools:

   • Some tools help calculate limits.
   • These tools can find points where the function is undefined, which helps in figuring out the domain.

When students use technology, about 80% of them feel they understand these ideas better.