A:

Here's how to do it with regression: - We know that two lines must be parallel (and pass through the same points) for there to be infinite solutions, which is why we can set them "equal to" each other. - r is part of the gradient which can change to be parallel and equal to each other.

If you want a more intuitive way to do it: - r + 3/4 is the gradient of the line which is variable to change, it only has to be parallel to the other line, which has a gradient of 1.5. - The lines have to be parallel and equal to each other for there to be infinite solutions, which is why they are situated on top of each other:

@Hamy Mv Thanks so much :)

Hey W W, good question, here are some things I do: - Before each module, I like to close my eyes and take some deep, slow breaths. - During practice I like to listen to brown noise, so I don't get distracted, it also mimics the background noise. - Set timers and frequent breaks during your study, so you don't feel like you are constantly studying.

@Manthan Kadam Thank you!

@Jason Parton Thanks man, will do 🫡