The slope of a line can be obtained by using the equation below
[tex]\text{slope =}\frac{y_2-y_1}{x_2-x_1}[/tex]
So we can pick the points
x1 = 0, y1 = 7
and
x1 = 2 and y2 = 11
So we can substitute these values into the equation
[tex]\text{slope = }\frac{11\text{ - 7}}{2\text{ - 0}}\text{ =}\frac{4}{2}\text{ = }\frac{2}{1}[/tex]
slope = 2/1
Answer = option A
