Question 3 Unsaved The formula for calculating simple interest relates the amount of interest, I, to the principal, p, the inter
est rate, r, and the time, t. It is represented by the following equation. I=prt Which equation can be used to find the principal if you know the amount of interest earned, the interest rate, and the time?
When a function intersects with the x-axis, it's y value must be 0. That means when the straight line intersects with the axis, it's at the point (4k,0), so plugging those numbers into our original equation yields:
