The y-intercept is the point at which a linear equation crosses the y-axis on the x=0 plot point. The equation to determine both the slope and the y-intercept of a line is y=mx+b. This calculation ...

For instance, to say that increasing X by one unit increases Y by two standard deviations allows you to understand the relationship between X and Y regardless of what units they are expressed in.

The change in 𝑦 divided by ÷ the change in 𝑥 always gives the gradient as \(\frac{-1}{2}\). The line crosses the 𝑦-axis at 3, so the 𝑦-intercept ... the first 𝑦-coordinate from ...