Square efgh stretches vertically by a factor of 2.5 to create square e′f′g′h′. the square stretches with respect to the x-axis. if point h is located at (-2, 0), what are the coordinates of h′ ? . a) (-5, 0). b) (-2, 0). c) (0.5, 0). d) (-2, 2.5).

A vertical stretching is the stretching of the graph away from the x-axis. 
It means you simply need to multiply the scale factor with the x-values.
If point H is located at (-2, 0),and the scale factor is 2,then the stretch would be (-2*2.5,0)
Hence,the new point will be:
A.(-5,0).

The answer would be b