Find the slope the line that contains (2,4) and (4,4)
4+4/4+2 =4/3 ...The answer is this
Slope between points (x,y) and (a,b) is given by( b-y) over (a-x)..Thus4-4 over 4-2 equals 0 is your answer... The line joining these two above points is parallel to X axis or perpendicular to y axis .on y axis this line intersects at (0,4)...
