Question 53965
The slope, m, of a line s defined as {{{m=(y[2]-y[1])/(x[2]-x[1])}}}.  So just substitute your ordered pairs into that equation to get {{{m=(-3-4)/(2-2)}}}, which simplifies to {{{m=-7/0}}}.  Because division by 0 is undefined, that means our slope is undefined.  Any line with an undefined slope is a vertical line and that is confirmed by examining the x-values of both ordered pairs here.