No i ray cannot have two end points. A ray only has one line that keeps on going and the other side has a endpoint where it does not keep on going like a line.
Hope this helps. (:
A parallel line has the same gradient
First you will need to rearrange the equation 10x+2y=-2
Then once you do that please comment
If you don’t know how please comment
3(a-b) and 3a-3b. Equivalent
2a(2+b) and 4ab. Not equivalent