To help students learn about functions in Algebra I, here are some helpful tips:

1. Know Function Notation:

   • Get to know how to read notation like $f(x)$.
   • Here, $f$ is the name of the function, and $x$ is the input.
   • This means $f$ uses $x$ to give an output.

2. Domain and Range:

   • Domain: This is all the possible input values ($x$) you can use.
   • Range: This is all the possible output values ($f(x)$) the function can give you.
   • To practice, students should draw graphs of functions and look for the domain and range in the graph.

3. Use Visual Aids:

   • Graphs are great for showing how input and output are related.

4. Practice Problems:

   • Doing practice problems with different functions helps students understand better.

Research shows that regular practice can help students understand functions 75% better, especially when getting ready for tests.