Finding intercepts on function graphs can be tough for 9th graders in Pre-Calculus. Intercepts are the spots where a graph touches the axes. They’re really important for understanding how a function works. However, many students find it confusing to identify them.

1. X-Intercepts: These are found where the graph crosses the x-axis. This means the output, or y-value, is zero. To find x-intercepts, you need to solve the equation ( f(x) = 0 ). Many students have a hard time with algebra, which can lead to mistakes or missing answers.

2. Y-Intercepts: These happen where the graph crosses the y-axis. Here, you set the input, or x-value, to zero. So, you need to evaluate ( f(0) ). It sounds easy, but sometimes students forget to plug in the right number or misunderstand the function.

3. Graphing Issues: Plotting these points can be tricky, especially with complicated functions or when the intercepts are hard to see.

To make this easier, students can try these tips:

• Practice solving equations regularly to boost their algebra skills.
• Use graphing calculators or software to see how functions and their intercepts look.
• Ask friends or teachers for help if they’re confused about how functions work.

Although finding intercepts can feel overwhelming, staying determined and using the right tools can make learning a lot simpler.