My course

Hi there! I used enter in 2c to create the graph. This is a special case where two key can lead to the same result.

Notice that you have to go back to 'Zoom' to view the graph with 'Enter'. The 'Graph' button allows us o access the graph with ease.

Hi there! What's exact issue with this video?

Due to many challenges, such as shooting a really long video that repeats redundant steps covered earlier, we balance the video to favor both weak and smart students. Smart students will find a repetitive video time wasting while weak students find the video that jumps some steps too hard to follow. Long videos will also mean you take long to watch the course.

Therefore, you may organize previously learned concepts for reference and help you understand any missing steps.

If this is a learning video, it would be better to avoid the " let me do it quickly" approach and solve the problem using a completely different formula than the one taught before. It may be easier for the teacher, but not for the ones trying to find out why and where those numbers are coming from.