Direct and Inverse Proportion

The video tutorial explains how to find a formula for R in terms of t when R is proportional to t squared. It demonstrates the process of determining the proportional constant k using graph coordinates and deriving the formula R = 2.5t^2. Additionally, it shows how to prove that t is inversely proportional to the square root of x, using given equations and making t the subject.

What is the final formula for R in terms of t after substituting the value of k?

In part b, how is R expressed in relation to x?

What steps are taken to show that t is inversely proportional to the square root of x?