The slope of an equation in slope-intercept form is the coefficient of x. However, if you have two points on a graph, you can find it using the equation below:
m(slope) = (y2 - y1)/(x2 - x1)
In which, the first ordered pair would be (x1, y1) and the second ordered pair would be (x2, y2)
Not entirely sure, but it seem the answer could be B.) It will not be spread out vertically across the entire coordinate plane because in step 5, Nancy selected an incorrect scale on the y-axis.