B. (2,4) and D. (7,1) are both in the equation
the horizontal line is the x-axis and the points are written by (x,y) so the x is the first number written
we can check that 2,4 is a point on the line by finding 2,4 on the graph. once we find it, we see it coincides with the line as does 7,1
(this is just an explanation in case u want to understand why)
