From the graph, the y-intercept of line

l is (0, 1). The line also passes through the point

(1,2). Therefore the slope of the line is

==1,and in slope-intercept form, the equation for line

l is

y=x+1Choice A is incorrect. It is the equation of the vertical line that passes through the point

(1,0).Choice B is incorrect. It is the equation of the horizontal line that passes through the point

(0,1). Choice C is incorrect. The line defined by this equation has y-intercept

(0,0), whereas line has y-intercept

(0,1).