A number (or coefficient) multiplying in front of a function causes a vertical transformation.
Vertical Stretching and Shrinking are summarized in the following table:
Equation |
y=cf(x) with c>1 |
y=cf(x) with 0<c<1 |
Effect on Graph |
The graph of f is strectched vertically by a factor c |
The graph of f is compressed vertically by a factor 1/c |
