Answer:
Hi!
The function that represents a transformation by a vertical stretch of 1.25 factor is g(x)=1.25 * 10x
Step-by-step explanation:
By definition, if you have the equation f(x)=mx, the m is acting as the vertical stretch function. This means the larger the absolute value of m, the steeper the slope.
For the function f(x) = 10x, m=10. If you want to increase 1.25 the vertical stretch of f(x), then you have to multiply by 1.25m the vertical stretch.
g(x) = 1.25*10x → g(x) 12.5x
See the graphs of g(x) and f(x) on the attachment.
