Question

Explain how you can determine the initial value of a linear relationship, the y- intercept, when given two points.

Answer 1

There is a formula to find the slope (m)

(y2 - y1) / (x2 - x1)

So we now have y = mx + b where m is the value you just calculated

The y intercept (b) = y - mx

Plug in the x,y values for one of your points into this formula