Find the equation of a line passing through two points

1. Lay It On The Line - equation of line given table of values
2. Lay It On The Line - equation of line given table of values
3. Y's Words - use table of values for line
4. Y's Words - use table of values for line
5. Caught in The Crossfire - points on a line
6. Caught In The Crossfire - points on a line