Question

PLEASE HELP!!
The graph of function g is a vertical stretch of the graph of function f ​​by a factor of 5. Which equation describes function g?

Answer 1

It is the choice #3: 5*f(x)

A vertical scaling is always a factor in front of the f(x).

Since it is a stretch (rather than a "squeeze") it is a number >1, so 5 in this case.