How to Solve Decimal Intercepts
- 1). Identify two points on the line with whole coordinates. For example, two points on a line that has a decimal intercept may have coordinates of (3, 1) and (10, 2).
- 2). Divide the difference between these points' y-coordinates by the difference between their x-coordinates: (1 - 2) ÷ (3 - 10) = 0.1429. This is the line's gradient.
- 3). Subtract either of the points' y-coordinates from the product of its x-coordinate and the gradient: 1 - (3 --- 0.1429) = 0.571; 2 - (10 --- 0.1429) = 0.571. This value is the line's decimal intercept.
