you can see when the value of x when y is 0 is 1 so the y intercept is 1 so only because b and do have a y intercept of 1 b and d are left
for the slope you see each time The x value goes up by 1 the y value goes up by a positive number less than 1 so that rules out b also the points are (0,1) and (1,1 2/3) so the slope is 1 2/3 - 1 = 2/3
