Given
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)
Find the coordinates of H′
To proof
In stretching case
when the stretching take place by scale fator
let coordinate = (x,y )
After stetching
new coordinate = ( kx,ky)
As given in question
Square EFGH stretches vertically by a factor of to create square E′F′G′H′= 2.5
square stretches with respect to the x-axis
coordinate of H = (-2,0)
coordinates of H′  = 2.5 (-2,0)
                =  ( -5 , 0 )
Hence proved
