If there isn't a base, the base is 10 :)
The slope of the line <span>x=1</span><span> does not exist. Because there are no tow points with different </span>x<span> values on the line.</span>
It is not defined.
<span>This case is not includes in the definition of slope.</span>
<span><span>two points, (x1, y1) and (x2, y2), on the line; or.</span><span>one point, (x1, y1), on the line and the slope, m; or.</span><span>the y-intercept, b, and the slope, m</span></span>
The answer is a , solve everything out and work it out you will see how i got it