Question 942419
the slope of the line is 7/3 so you're correct there.
the equation of the line depends on the slope and the y-intercept.
many lines can have the slope of 7/3.
only one of them can pass through a certain point.
did they specify the point that the line goes through?
they usually do.
alternately, you may have just had to select a line that satisfies the criteria that the slope is 7/3 from the selections given.
that would have required you to find the slope of all the selections and then pick the one that had the slope of 7/3. 
presumably only one of them would have had that slope.